Marine Plumbing & Ventilation

97 products

  • Sale -14% TH Marine HYDRA Livewell Pump  1100 GPH  12V  Long Nozzle PMPLWL11DP

    T-H Marine Supplies T-H Marine HYDRA Livewell Pump - 1100 GPH - 12V - Long Nozzle [PMP-LWL11-DP]

    19 in stock

    HYDRA™ Livewell Pump - 1100 GPH - 12V - Long NozzleThe T-H Marine HYDRA™ Livewell Pump is engineered for consistent livewell circulation with simplified service and dual-function capability for serious anglers. Backed by 4,000 hours of testing, HYDRA delivers dependable performance through an anti-airlock design that ensures reliable restarts—even when air is present in the line.Designed for durability in harsh marine environments, the pump features a precision-balanced motor and a 316 stainless steel motor shaft to reduce vibration, noise, and corrosion over time. Stator vane technology optimizes flow efficiency, while the dual-lock cartridge design allows fast motor removal and service without disconnecting hoses or plumbing.Built with versatility in mind, the HYDRA Livewell Pump includes a secondary outlet for wash-down applications, an integrated sealant channel to prevent leaks, and both short and long threaded intake options for flexible installations. Available in 600, 800, and 1100 GPH configurations and meeting ABYC, ISO, and U.S. Coast Guard standards, HYDRA is the premium solution for reliable livewell performance.Features: LONG: 3.5" (3/4"-14) Threaded intake tube (Hole installation size: 1-1/16") FLOW RATE: 1100 GPH AMP DRAW: Approx. 5A FUSE SIZE: 6 AMP INSTALL HOLE: 1-1/16" ANTI-AIRLOCK DESIGN: Engineered to restart reliably, even with air in the line. 316 STAINLESS STEEL MOTOR SHAFT: Corrosion-resistant for long-term durability. PRECISION BALANCED MOTOR: Runs smoother with reduced vibration and noise. REMOVABLE NOZZLE: Allows quick service without disconnecting the hose. STATOR VANE TECHNOLOGY: Optimizes flow efficiency and performance. DUAL-LOCK CARTRIDGE: Designed for quick removal and fast service. SECONDARY OUTLET: Dedicated outlet for wash-down pump. SEALANT CHANNEL: Integrated to prevent leaks. Specifications: Gallons Per Hour: 1100 GPH Gallons Per Minute: 18 Type: Pumps/Drives Volts: 12 Box Dimensions: 6"H x 6"W x 9"L WT: 1.45 lbs UPC: 733572258325

    19 in stock

    $85.99 $73.99

  • Sale -10% TH Marine HYDRA Cartridge Bilge Pump  1100 GPH  12V PMPBLG11DP TH Marine HYDRA Cartridge Bilge Pump  1100 GPH  12V PMPBLG11DP

    T-H Marine Supplies T-H Marine HYDRA Cartridge Bilge Pump - 1100 GPH - 12V [PMP-BLG11-DP]

    13 in stock

    HYDRA™ Cartridge Bilge Pump - 1100 GPH - 12VThe HYDRA™ Cartridge Bilge Pump is engineered for dependable marine water removal with a service-friendly cartridge design that allows rapid motor replacement without removing the pump housing. Backed by 4,000 hours of testing, HYDRA delivers consistent performance through an advanced anti-airlock design that ensures reliable restarts—even when air is present in the line.Built for long-term durability in harsh marine environments, the HYDRA Cartridge Bilge Pump features a precision-balanced motor and a 316 stainless steel motor shaft to reduce vibration, noise, and corrosion. Stator vane technology optimizes flow efficiency, while the dual-lock cartridge system allows quick, tool-free motor removal for fast servicing on the water or at the dock.Designed with OEM-friendly installation in mind, the positive-lock strainer base matches most standard mounting patterns, and the pump includes straight and 90° outlets, a backflow restrictor, and a flat seal for flexible plumbing configurations. Available in 600 GPH, 800 GPH, and 1100 GPH options and meeting ABYC, ISO, and U.S. Coast Guard standards, the HYDRA Cartridge Bilge Pump delivers reliable performance boaters can trust.Features: AMP DRAW: Approx. 5A FUSE SIZE: 7.5 AMPFLOW RATE: 1100 GPH ANTI-AIRLOCK DESIGN: Engineered to restart reliably, even with air in the line. 316 STAINLESS STEEL MOTOR SHAFT: Corrosion-resistant for long-term durability. PRECISION BALANCED MOTOR: Runs smoother with reduced vibration and noise. REMOVABLE NOZZLE: Allows quick service without disconnecting the hose. STATOR VANE TECHNOLOGY: Optimizes flow efficiency and performance. POSITIVE-LOCK STRAINER BASE: Mounting pattern matches most manufacturers. DUAL LOCK CARTRIDGE: Designed for quick removal and fast service. INCLUDES: Straight & 90º Outlet, Backflow Restrictor, and Flat Seal. Specifications: Gallons Per Hour: 1100 GPH Gallons Per Minute: 18 Type: Pumps/Drives Volts: 12 Box Dimensions: 6"H x 6"W x 9"L WT: 1.4 lbs UPC: 733572258332

    13 in stock

    $69.99 $62.99

  • Sale -14% TH Marine HYDRA Automatic Bilge Pump  1100 GPH  12V PMPBLGA11DP TH Marine HYDRA Automatic Bilge Pump  1100 GPH  12V PMPBLGA11DP

    T-H Marine Supplies T-H Marine HYDRA Automatic Bilge Pump - 1100 GPH - 12V [PMP-BLGA11-DP]

    17 in stock

    HYDRA™ Automatic Bilge Pump - 1100 GPH - 12VThe T-H Marine HYDRA™ Automatic Bilge Pump is engineered for reliable, high-performance water removal with long-term durability built in. Backed by 4,000 hours of testing, HYDRA delivers dependable operation through its advanced anti-airlock design, ensuring reliable restarts even when air is present in the line. A precision-balanced motor with a 316 stainless steel motor shaft reduces vibration, noise, and corrosion for smooth, long-lasting performance in harsh marine environments.Designed for simplified service and OEM-friendly installation, HYDRA features a removable nozzle for quick maintenance without disconnecting hoses and a positive-lock strainer base that matches most standard mounting patterns. The integrated Sure-Start™ float switch and programmed start delay prevent false starts and extend pump life, while the external test knob allows fast manual operation checks. Available in 800 GPH and 1100 GPH models and meeting all major ABYC, ISO, and U.S. Coast Guard standards, HYDRA is built for confidence on every outing.Features: FLOW RATE: 1100 GPH AMP DRAW: Approx. 5A FUSE SIZE: 7.5 AMP ANTI-AIRLOCK DESIGN: Engineered to restart reliably, even with air in the line. 316 STAINLESS STEEL MOTOR SHAFT: Corrosion-resistant for long-term durability. PRECISION BALANCED MOTOR: Runs smoother with reduced vibration and noise. REMOVABLE NOZZLE: Allows quick service without disconnecting the hose. STATOR VANE TECHNOLOGY: Optimizes flow efficiency and performance. POSITIVE-LOCK STRAINER BASE: Mounting pattern matches most manufacturers. SURE-START FLOAT SWITCH: Corrosion-proof design for a reliable start every time. EXTERNAL TEST KNOB: Allows for quick manual testing. INCLUDES: Straight & 90º Outlet, Backflow Restrictor, and Flat Seal. Specifications: Gallons Per Hour: 1100 GPH Gallons Per Minute: 18 Operation: Automatic Type: Pumps/Drives Volts: 12 Box Dimensions: 6"H x 6"W x 9"L WT: 1.75 lbs UPC: 733572258349

    17 in stock

    $139.99 $120.99

  • Sale -14% TH Marine HYDRA Livewell Pump  1100 GPH  12V  Short Nozzle PMPLWS11DP

    T-H Marine Supplies T-H Marine HYDRA Livewell Pump - 1100 GPH - 12V - Short Nozzle [PMP-LWS11-DP]

    8 in stock

    HYDRA™ Livewell Pump - 1100 GPH - 12V - Short NozzleThe T-H Marine HYDRA™ Livewell Pump is engineered for consistent livewell circulation with simplified service and dual-function capability for serious anglers. Backed by 4,000 hours of testing, HYDRA delivers dependable performance through an anti-airlock design that ensures reliable restarts—even when air is present in the line.Designed for durability in harsh marine environments, the pump features a precision-balanced motor and a 316 stainless steel motor shaft to reduce vibration, noise, and corrosion over time. Stator vane technology optimizes flow efficiency, while the dual-lock cartridge design allows fast motor removal and service without disconnecting hoses or plumbing.Built with versatility in mind, the HYDRA Livewell Pump includes a secondary outlet for wash-down applications, an integrated sealant channel to prevent leaks, and both short and long threaded intake options for flexible installations. Available in 600, 800, and 1100 GPH configurations and meeting ABYC, ISO, and U.S. Coast Guard standards, HYDRA is the premium solution for reliable livewell performance.Features: SHORT: 1.5" (3/4"-14) Threaded intake tube (Hole installation size: 1-1/16" FLOW RATE: 1100 GPH AMP DRAW: Approx. 5A FUSE SIZE: 6 AMP INSTALL HOLE: 1-1/16" ANTI-AIRLOCK DESIGN: Engineered to restart reliably, even with air in the line. 316 STAINLESS STEEL MOTOR SHAFT: Corrosion-resistant for long-term durability. PRECISION BALANCED MOTOR: Runs smoother with reduced vibration and noise. REMOVABLE NOZZLE: Allows quick service without disconnecting the hose. STATOR VANE TECHNOLOGY: Optimizes flow efficiency and performance. DUAL-LOCK CARTRIDGE: Designed for quick removal and fast service. SECONDARY OUTLET: Dedicated outlet for wash-down pump. SEALANT CHANNEL: Integrated to prevent leaks. Specifications: Gallons Per Hour: 1100 GPH Gallons Per Minute: 18 Type: Pumps/Drives Volts: 12 Box Dimensions: 6"H x 6"W x 9"L WT: 1.4 lbs UPC: 733572258318

    8 in stock

    $84.99 $72.99

  • Attwood Service Kit fS1200 Bilge Pumps AK55127

    Attwood Marine Attwood Service Kit f/S1200 Bilge Pumps [AK5512-7]

    12 in stock

    Service Kit for S1200 Bilge PumpsSpecifications: Outlet Diameter: 1" (25mm) & 1-1/8" (28mm) Compatible with Tsunami Bilge Mk2 Kit includes (1 each): 90-degree outlet Straight outlet Washer Non-return/check valve WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

    12 in stock

    $17.88

  • Sale -6% Attwood Stainless Steel ThruHull Short Straight Barbed  112 Inner Diameter 665453

    Attwood Marine Attwood Stainless Steel Thru-Hull Short Straight Barbed - 1-1/2" Inner Diameter [66545-3]

    10 in stock

    Stainless Steel Thru-Hull Short Straight Barbed - 1-1/2" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last the life of the boat?Rugged Stainless Construction: Cast from certified Enhanced 316 Stainless Steel alloy for strength and lifetime corrosion-resistance All visible areas are polished to a mirror finish, then passivate each part for additional protection Thick steel sidewalls withstand continual stress and hose flexing Faster, Simpler Installation: Each Thru-Hull is available with a new silicone gasket A channel under the flange holds a bead of sealant, making it easier to apply a trouble-free seal All models have wrench flats or an end notch to hold as a gripping surface; one installer can tighten all connections from inside the hull The barbed tail ends provide plenty of room to hold multiple clamps Stainless Steel Straight Thru-Hulls, BarbedShort Thread is a more compact size, which allows installation near corners and in confined areasSpecifications: Hose size: (inch) 1-1/2" inner diameter Flange Diameter: (inch) 3" Thread O.D. (outside diameter): (inch) 1-7/8"  Thread Length: (inch) 1-1/4" Barb Length: (inch) 1-1/2" Total Length: (inch) 3-1/8" Install Hole Saw Size: (inch) 2"  Thread NPSM: (inch) 1-1/2" Max Hull Thickness: (inch) 5/8" *Stainless Steel Thru-Hull Connectors are designed for installation above the water line only Specifications: Hose Size: 1-1/2" Material: Stainless Steel Box Dimensions: 3"H x 3"W x 3"L WT: 1.2 lbs UPC: 022697665454 Quick Guide (pdf)

    10 in stock

    $61.99 $57.99

  • Attwood Scupper Valve 38763 Attwood Scupper Valve 38763

    Attwood Marine Attwood Scupper Valve [3876-3]

    Scupper ValveProvides a water exit for boats with self-bailing cockpits. Acetal construction. Accommodates 3875B thru-transom thru-hull connector (screw holes must be drilled for installation.) Diameter: 2-7/8" Use as a replacement valve for 3881 Thru-Transom Scupper Caution: Thru-Hull connectors are designed for installation above the water line only.WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

  • Sale -9% Attwood Stainless Steel Scupper Valve Barbed  112 Hose Size 665533

    Attwood Marine Attwood Stainless Steel Scupper Valve Barbed - 1-1/2" Hose Size [66553-3]

    19 in stock

    Stainless Steel Scupper Valve Barbed - 1-1/2" Hose SizePolish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last the life of the boat?Rugged Stainless Construction: Cast from certified Enhanced 316 Stainless Steel alloy for strength and lifetime corrosion-resistance All visible areas are polished to a mirror finish, then passivate each part for additional protection Thick steel sidewalls withstand continual stress and hose flexing Faster, Simpler Installation: Each Scupper Valve is available with a new silicone gasket A channel under the flange holds a bead of sealant, making it easier to apply a trouble-free seal All models have wrench flats or an end notch to hold as a gripping surface; one installer can tighten all connections from inside the hull The barbed tail ends provide plenty of room to hold multiple clamps Stainless Steel Scupper Valves, Barbed: The Scupper Flap is tough neoprene rubber with a molded V that fits into the grooved body to reduce backwash Fasteners are concealed and corrosion-proof Specifications: Hose size: (inch) 1-1/2" inner diameter Thread Diameter: (inch) 1-7/8"  Flange O.D. (outside diameter): (inch) 3" Thread Length: (inch) 3-1/2" Barb Length: (inch) 1-1/2" Total Length: (inch) 5-1/2" Install Hole Saw Size: (inch) 2"  Thread NPSM: (inch) 1-1/2" Max Hull Thickness: (inch) 3" *Stainless Steel Thru-Hull Connectors are designed for installation above the water line only Specifications: Hose Size: 1-1/4" Material: Stainless Steel Box Dimensions: 3"H x 3"W x 6"L WT: 3 lbs UPC: 022697665539 Quick Guide (pdf)

    19 in stock

    $102.83 $93.99

  • Sale -8% Attwood Stainless Steel ThruHull Standard Straight Barbed  118 Inner Diameter 665493

    Attwood Marine Attwood Stainless Steel Thru-Hull Standard Straight Barbed - 1-1/8" Inner Diameter [66549-3]

    14 in stock

    Stainless Steel Thru-Hull Standard Straight Barbed - 1-1/8" Inner DiameterPolish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last the life of the boat?Rugged Stainless Construction: Cast from certified Enhanced 316 Stainless Steel alloy for strength and lifetime corrosion-resistance All visible areas are polished to a mirror finish, then passivate each part for additional protection Thick steel sidewalls withstand continual stress and hose flexing Faster, Simpler Installation: Each Thru-Hull is available with a new silicone gasket A channel under the flange holds a bead of sealant, making it easier to apply a trouble-free seal All models have wrench flats or an end notch to hold as a gripping surface; one installer can tighten all connections from inside the hull The barbed tail ends provide plenty of room to hold multiple clamps Stainless Steel Straight Thru-Hulls, BarbedStandard Thread model has a full-length thread for thick hulls and easy tighteningSpecifications: Hose size: (inch) 1-1/8" inner diameter Flange Diameter: (inch) 2-1/4" Thread O.D. (outside diameter): (inch) 1-3/8"  Thread Length: (inch) 2-3/8" Barb Length: (inch) 1-1/4" Total Length: (inch) 3-7/8" Install Hole Saw Size: (inch) 1-1/4"  Thread NPSM: (inch) 1" Max Hull Thickness: (inch) 1-3/4" *Stainless Steel Thru-Hull Connectors are designed for installation above the water line only Specifications: Hose Size: 1-1/8" Material: Stainless Steel Box Dimensions: 2"H x 4"W x 7"L WT: 0.85 lbs UPC: 022697665492 Quick Guide (pdf)

    14 in stock

    $42.28 $38.99

  • TM Marine 90Degree Cockpit Scupper Drain  White CSD92DP TM Marine 90Degree Cockpit Scupper Drain  White CSD92DP

    T-H Marine Supplies T-M Marine 90-Degree Cockpit Scupper Drain - White [CSD-92-DP]

    15 in stock

    90-Degree Cockpit Scupper Drain - WhiteThis cockpit scupper drain is an affordable and durable solution for draining areas below the waterline. Made from high-strength, UV-stabilized polymer, it features a check ball for effective sealing against reverse water flow and an optional leaf guard to prevent clogging.This cockpit scupper drain provides an inexpensive alternative to items currently available for draining areas where the discharge is below the waterline. This injection-molded part is high-strength and UV-stabilized to provide value and durability. The check ball contained inside the cockpit scupper drain is molded and then ground smooth and round to provide better sealing against reverse water flow that occurs when backing the boat. The leaf guard model has raised ribs on the head to prevent debris (leaves, scales, etc.) from clogging holes.The overall diameter of the mounting flange is 3 9/16". The cockpit scupper drain requires a 2 1/2" diameter hole for installation and mounts with four (4) number 8 screws (not furnished). The top of the cockpit scupper drain is removable for cleaning. All outlets fit 1 1/2 inch drain hoses.Features: Check the ball inside to prevent water from backing up Made of high-strength, UV-stabilized polymer Removable top screen for easy cleaning An optional leaf guard prevents debris from clogging Fits standard 1-1/2" drain hoses Specifications: 90-Degree Outlet 1-1/2" Hose Diameter Color: White Specifications: Hose Size: 1-1/2" Material: Polymer Type: Fittings & Hoses Box Dimensions: 4"H x 6"W x 9"L WT: 0.35 lbs UPC: 733572034158

    15 in stock

    $76.99

  • Sale -11%Last stock! Frabill AquaLife Single Output 110V Aerator 14221

    Frabill Frabill Aqua-Life Single Output 110V Aerator [PMC14221]

    2 in stock

    Aqua-Life™ Single Output 110V AeratorAqua-Life® Products run so quietly you'll forget you're aerating your bait. You'll know you are by the healthy condition of your bait. Aqua-Life® products feature a whisper quiet motor that runs efficiently at a low volume. Aqua-Life® products also utilize a special micro-bubble oxygen diffuser that produces clouds of tiny bubbles. Smaller more numerous bubbles mix readily as they collide and dispense through the entire water column. In bait containers, smaller bubbles are important as they are less prone to damage delicate baitfish. Each Aqua-Life® product includes the diffuser and a 30" non-kink air hose (Hoses and stones also sold separately as an accessory).Features: Aerates up to 15 gallons Produces close to 100% saturation of dissolved oxygen Rubber non-marking feet UL approved 6' power cord Includes: 30" of flexible air hose, 2" long air stone, anti-siphon valve Specifications: Volts: 110v Width: 8" Length (Inches): 9" Height: 4" Box Dimensions: 4"H x 8"W x 9"L WT: 0.85 lbs UPC: 082271214225

    2 in stock

    $44.99 $39.99

  • Sale -10% THMarine PushIn Drain Plug f118 ThruHull  All Purpose Drains PP118DP

    T-H Marine Supplies TH-Marine Push-In Drain Plug f/1-1/8" Thru-Hull All Purpose Drains [PP-118-DP]

    12 in stock

    Push-In Drain Plug for 1-1/8" Thru-Hull & All Purpose DrainsThese push-in drain plugs are used to stop water flow through drains or overflows from baitwell or livewell. Also work well as plugs for sink drains and built in cooler drains.Plugs are a perfect compliment to T-H Marine overflow drain tubes.These pvc push-in drain plugs are injection molded of marine grade PVC for a long lifespan. Plugs feature a pull tab or pull ring for easy removal.  They have double seal rings to assure positive sealing.      Specifications: Construction: Polymer Box Dimensions: 1"H x 4"W x 5"L WT: 0.1 lbs UPC: 733572032956

    12 in stock

    $9.99 $8.99

  • Frabill Replacement Aeration Stones 14281

    Frabill Frabill Replacement Aeration Stones [14281]

    20 in stock

    Replacement Aeration StonesAir stones can become clogged with mineral deposits which hamper their performance. Keep your portable aerator operating at peak efficiency by replacing the air stone on a regular basis.Features: High Output Air Stones quality aeration Premium Air Hose- includes 30 of tough non-kink air hose Includes aerator hose & 2 stones 7" x 5.5" x 1.5" Specifications: Width: 6" Length (Inches): 8" Height: 2" Box Dimensions: 2"H x 6"W x 8"L WT: 0.15 lbs UPC: 082271114280

    20 in stock

    $10.99

  • Sale -15% Attwood Replacement Cartridge fTsunami 1200 MK2 56246

    Attwood Marine Attwood Replacement Cartridge f/Tsunami 1200 MK2 [5624-6]

    9 in stock

    Replacement Cartridge for Tsunami 1200 MK21200 GPH Replacement Attwood Tsunami motor cartridge. For use with Attwood Tsunami MK2 (56 series) Bilge and Aerator pumps. Attwood Tsunami MK2 motor cartridge eliminates air locks.Features: 1200 GPH Replacement Attwood Tsunami motor cartridge For use with Attwood Tsunami MK2 (56 series) Bilge and Aerator pump Attwood Tsunami MK2 motor cartridge eliminates air locks

    9 in stock

    $50.64 $42.99

  • Sale -14%Last stock! Attwood HD2000 Heavy Duty Bilge Pump  24V  2000 GPH 47704 Attwood HD2000 Heavy Duty Bilge Pump  24V  2000 GPH 47704

    Attwood Marine Attwood HD2000 Heavy Duty Bilge Pump - 24V 2000 GPH [4770-4]

    4 in stock

    HD2000 Heavy Duty Bilge Pump - 24V & 2000 GPHHeavy-Duty Blige Pumps integrate the highest quality bearings, brushes, alloys, and magnets designed to withstand extreme usage cycles. The pump also employs an exclusive shaft and motor compartment, reducing wear and significantly extending pump life. Advanced resin compositions are incorporated in the exterior to resist chemicals such as engine oil, aggressive detergents, and hose plasticizers. Attwood’s Heavy Duty bilge has unsurpassed durability and efficiency in a compact design to ensure electrical energy is converted to the pump rather than excess heat. Attwood's highest capacity pump, the ball-bearing design provides for cooler motor operation and longer life. Also, this pump delivers over 2000 GPH at open flow while drawing less than 7-amps.Features: High-quality bearings, brushes, alloys, and magnets Advanced resin compositions incorporated into the exterior Specifications: Rated Voltage: 24 Fuse Size: 7 Amp Hose Size: (inch) 1-1/8" inner diameter Specifications: Gallons Per Hour: 2000 GPH Operation: Non-Automatic Outlet Size: 1-1/8" Type: Electric Volts: 24v Box Dimensions: 6"H x 6"W x 7"L WT: 2.4 lbs UPC: 022697477040 Quick Guide (pdf)

    4 in stock

    $187.51 $160.99

  • Attwood Stainless Steel ThruHull Standard Straight Barbed  58 Inner Diameter 665463

    Attwood Marine Attwood Stainless Steel Thru-Hull Standard Straight Barbed - 5/8" Inner Diameter [66546-3]

    10 in stock

    Stainless Steel Thru-Hull Standard Straight Barbed - 5/8" Inner DiameterPolish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last the life of the boat?Rugged Stainless Construction: Cast from certified Enhanced 316 Stainless Steel alloy for strength and lifetime corrosion-resistance All visible areas are polished to a mirror finish, then passivate each part for additional protection Thick steel sidewalls withstand continual stress and hose flexing Faster, Simpler Installation: Each Thru-Hull is available with a new silicone gasket A channel under the flange holds a bead of sealant, making it easier to apply a trouble-free seal All models have wrench flats or an end notch to hold as a gripping surface; one installer can tighten all connections from inside the hull The barbed tail ends provide plenty of room to hold multiple clamps Stainless Steel Straight Thru-Hulls, BarbedStandard Thread model has a full-length thread for thick hulls and easy tighteningSpecifications: Hose size: (inch) 5/8" inner diameter Flange Diameter: (inch) 1-7/8" Thread O.D. (outside diameter): (inch) 1"  Thread Length: (inch) 2" Barb Length: (inch) 1-1/4" Total Length: (inch) 3-3/4" Install Hole Saw Size: (inch) 1-1/8"  Thread NPSM: (inch) 3/4" Max Hull Thickness: (inch) 1-1/16" *Stainless Steel Thru-Hull Connectors are designed for installation above the water line only Specifications: Hose Size: 5/8" Material: Stainless Steel Box Dimensions: 2"H x 3"W x 6"L WT: 0.5 lbs UPC: 022697665461 Quick Guide (pdf)

    10 in stock

    $27.99

  • Sale -5% Attwood Stainless Steel Garboard Drain Plug  78 Diameter 75577

    Attwood Marine Attwood Stainless Steel Garboard Drain Plug - 7/8" Diameter [7557-7]

    Stainless Steel Garboard Drain Plug - 7/8" DiameterThe Garboard Drain Plug is a threaded removable plug, which has a retention system that keeps the plug from getting lost. Features: High-polished #316 stainless steel reduces corrosion Large 7/8" (27mm) hole for servicing stern drives *Gasket not included Specifications: Construction: Stainless Steel Box Dimensions: 2"H x 3"W x 5"L WT: 0.3 lbs UPC: 022697075574 Quick Guide (pdf)

    $37.99 $35.99

  • Sale -1% Attwood White Plastic 90 Degree ThruHull Connector  118 Inner Diameter 38793

    Attwood Marine Attwood White Plastic 90 Degree Thru-Hull Connector - 1-1/8" Inner Diameter [3879-3]

    12 in stock

    White Plastic 90 Degree Thru-Hull Connector - 1-1/8" Inner Diameter90° Thru-Hulls are ideal for tight installations, such as livewell overflow drains. The angled design also eliminates hose kinking.Specifications: Fits Hose Size: (inch) 1-1/8"inner diameter Max Hull Thickness: (inch) 1-7/8" Flange Diameter: (inch) 2-7/16" Installation Hole Size: (inch) 1-5/16" Drain Plug: (inch) 7/8" Color: White *Plastic Thru-Hull Connectors are designed for installation above the water line only Specifications: Hose Size: 1-1/8" Material: Plastic Box Dimensions: 2"H x 4"W x 7"L WT: 0.25 lbs UPC: 022697387936 Quick Guide (pdf)

    12 in stock

    $16.19 $15.99

  • Sale -14% Attwood Turbo 3000 Series WaterResitant InLine Blower  12V  White 17334 Attwood Turbo 3000 Series WaterResitant InLine Blower  12V  White 17334

    Attwood Marine Attwood Turbo 3000 Series Water-Resitant, In-Line Blower - 12V - White [1733-4]

    Turbo 3000 Series In-Line BlowerPart #: 1733-4The first vane axial-flow fan bilge blowers designed using aerospace technology to maximize performance. No other bilge blowers in the industry provide such powerful system output at such a low power input in a compact size.Patented in-line design - provides ventilation for engine compartments, galleys, bilges, and heads. Mounting feet allow vertical or horizontal installation in confined spaces. Install with #10 fasteners. Individual carton includes 2 tie straps. All are CE certified. 16-gauge tinned and caulked copper wire leads with optional MP1 molded rubber connectors. Improved 3" design.Features: Nickel-plated motor can for corrosion resistance Stiffening ribs to reduce housing distortion Motor cap to seal wires and motor for water resistance Five-blade fan maximize airflow and efficiency Tabs in intake and exhaust hold ventilation hose/clamp firmly in place Low amp draw motor for longer blower and battery life Built-in mounting feet allow easy vertical or horizontal install WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Specifications: Open Flow (CFM): 120 CFM Volts: 12v Box Dimensions: 4"H x 5"W x 6"L WT: 1 lbs UPC: 022697173348 Quick Guide (pdf)Brochure (pdf)

    $39.53 $33.99

  • Sale -9%Last stock! Frabill Aeration  Lid Combo Pack 99091

    Frabill Frabill Aeration Lid Combo Pack [99091]

    2 in stock

    Aeration & Lid Combo PackSpecifically designed and tested to keep saltwater baitfish healthy and active, these pumps can convert any size cooler or livewell into an oxygen-rich aquarium.Features: Lids fit most 4.25, 5 and 6 gallon buckets Large bait door for easy bait access Includes 14202 aerator with hose and stone Molded slots for bait net, tools, etc. Aerates up to 6 gallons Runs on two D batteries Includes minnow dip net 13.5" x 12.5" x 3" Specifications: Width: 14" Length (Inches): 14" Height: 3" Box Dimensions: 3"H x 14"W x 14"L WT: 1.15 lbs UPC: 082271099099

    2 in stock

    $34.99 $31.99

  • Sale -11% TH Marine Washdown Fitting wShutoff Valve WDV1DP

    T-H Marine Supplies T-H Marine Washdown Fitting w/Shutoff Valve [WDV-1-DP]

    Washdown Fitting with Shutoff ValveThis bulkhead-mounted washdown fitting is inexpensive, functional, easy to install, and rust-proof. This injection-molded plastic fitting is 2 1/4" in diameter and mounts in a 1 1/4" diameter hole with 3 countersunk screws. Features: Black flange color Injection-molded, UV-stabilized, and rust-proof Standard garden hose thread outlet The inlet fits 3/4" marine hose Protective cap with retainer The flange dimension is 2-1/4" OD Installation in a 1-1/4" hole Straight inlet configuration Shutoff valve Specifications: Construction: Plastic Box Dimensions: 4"H x 6"W x 8"L WT: 0.2 lbs UPC: 733572012200

    $45.99 $40.99

  • Sale -11% Attwood Tsunami Mk2 T1200 Aerator  12V  90Degree Inlet 56644

    Attwood Marine Attwood Tsunami Mk2 T1200 Aerator - 12V - 90-Degree Inlet [5664-4]

    9 in stock

    Tsunami Mk2 T1200 Aerator - 12V - 90-Degree InletKeep bait and fish alive with the Tsunami Aerator Mk2. Attwood’s leading fish-friendly technology is making it easier to install and service while offering new installation options never provided by the Tsunami range.Features: 3-1/2" x 1-1/8" thru-hull Flexible installation with both 90 and straight inlets and outlets Full backward compatibility with previous Tsunami models Faster, smarter installation with no sealant or tools is required Specifications:Flow Gallon/Hour: 1200 Specifications: Gallons Per Hour: 1200 Inlet Style: Angled Volts: 12v Box Dimensions: 4"H x 8"W x 9"L WT: 1.5 lbs UPC: 022697025456

    9 in stock

    $74.40 $65.99

  • Sale -10% Attwood Tsunami Mk2 T500 Aerator Kit 52534

    Attwood Marine Attwood Tsunami Mk2 T500 Aerator Kit [5253-4]

    20 in stock

    Tsunami Mk2 T500 Aerator KitThis aerator kit is recommended for fishing boats with built-in livewells that are not equipped with a thru-hull recirculation system. The pump is sealed and can be occasionally submerged; however, the electrical wires must never be submerged.Kit Includes: Aerator spray head SS wire mesh strainer  Pump Straight outlet fitting  Hose  Two hose clamps Specifications: Pump Model: T500 Flow Gal/HR: 500 Amp Fuse: 3 Outlet Hose Inner Diameter: 3/4” (19mm) Two hose clamps Specifications: Gallons Per Hour: 500 Outlet Size: 3/4" Volts: 13.6v Box Dimensions: 5"H x 7"W x 9"L WT: 1.15 lbs UPC: 022697026019

    20 in stock

    $74.82 $66.99

  • Sale -11% Attwood Tsunami Mk2 T800 Aerator  12V  90Degree Inlet 56544

    Attwood Marine Attwood Tsunami Mk2 T800 Aerator - 12V - 90-Degree Inlet [5654-4]

    9 in stock

    Tsunami Mk2 T800 Aerator - 12V - 90-Degree InletKeep bait and fish alive with the Tsunami Aerator Mk2. Attwood’s leading fish-friendly technology is making it easier to install and service while offering new installation options never provided by the Tsunami range.Features: 3-1/2" x 3/4" thru-hull Flexible installation with both 90 and straight inlets and outlets Full backward compatibility with previous Tsunami models Faster, smarter installation with no sealant or tools is required Specifications:Flow Gallon/Hour: 800 Specifications: Gallons Per Hour: 800 Inlet Style: Angled Volts: 12v Box Dimensions: 4"H x 8"W x 9"L WT: 1.5 lbs UPC: 022697025449

    9 in stock

    $63.77 $56.99


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