Marine Plumbing & Ventilation

1571 products


  • Sale -18% Attwood Stainless Steel Thru-Hull Standard Straight Barbed - 1-1/8" Inner Diameter [66549-3]

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

    9 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)

    9 in stock

    $42.28$34.50

  • Sale -47%Last stock! Johnson Pump Aqua O2 Twin Port 500 GPH Aerator Pump - Flex Mount - 12V [10-13649-01]

    Johnson Pump Aqua O2 Twin Port 500 GPH Aerator Pump - Flex Mount - 12V [10-13649-01]

    4 in stock

    Aqua O2 Twin Port 500 GPH Aerator Pump - Flex Mount - 12VJohnson Pump cartridge aerator pumps offer ease of convenience and years of reliable service. This pump has an improved design with an easy-to-change/replace motor cartridge.Features: All Aqua O2 Cartridge Aerator Pumps offer the convenience of using only one intake for both the livewell and washdown pump Includes a 3/4 NPT seacock inlet High-flow impeller design Quick-change motor connection 360-degree pump discharge rotation Switchless automatic bilge pump with low-amp resistance monitoring Durable thermoplastic housing design commonality with removable motor cartridge Water-cooled motor, 316 stainless steel shaft, and permanently lubricated double bearings Upgradable motor cartridge Dual-port inlet Benefits: Heightened efficiency and an increased flow rate Enjoy quick and hassle-free cartridge motor changes or capacity upgrades Reorient discharge in any direction The common body allows interchangeable motor cartridge replacement in the same or different size Corrosion-resistant and extended life Allows single transom intake for dual intake pump application Can increase or decrease capacity according to the environment and flow needed Choose the correct intake for the application Competitive Advantages: The most efficient and highest flow in the GPH capacity category Industry-first and only cartridge motor pump with an included harness connection requiring no cutting and splicing of wires Unmatched versatility for ease of installation Specifications: Pump Size: 500 GPH Capacity Straight (12V): 585 GPH (37 I/min) Voltage: 12V Amp: 2.7A Fuse: 3.5A Hose Connection: 3/4 in. Wire Size: 16 GA, TINNED Weight: 9.6 oz  Body: ABS Dura Port: PA66/GF - Nylon Shaft: 316 Stainless Steel Shaft Seal: Nitrile Rubber Motor Cartridge: PC-ABS Specifications: Gallons Per Hour: 500 GPH Inlet Style: Seacock Volts: 12v Box Dimensions: 3"H x 5"W x 8"L WT: 1.2 lbs UPC: 7330717017835 Quick Guide (pdf)

    4 in stock

    $93.63$49.50

  • Sale -25% GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 3/4" [HTH-750-S]

    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 3/4" [HTH-750-S]

    15 in stock

    Stainless Steel Hose Barb Thru-Hull Fitting - 3/4" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Hose Size: 3/4" Material: Stainless Steel Box Dimensions: 3"H x 3"W x 4"L WT: 0.5 lbs UPC: 742985138988

    15 in stock

    $34.00$25.50

  • Sale -44%Last stock! GROCO BS-25 Stainless Steel Basket f/BVS-1500 [BS-25]

    GROCO BS-25 Stainless Steel Basket f/BVS-1500 [BS-25]

    3 in stock

    BS-25 Stainless Steel Basket for BVS-1500This is a direct replacement basket for the BVS series strainer. The redesign fixes a few design issues concerning past model complications. The BS-25 basket is constructed of stainless steel.Features:Stainless Steel Basket Fits:BVS-1500 Specifications: Material: Stainless Steel Box Dimensions: 4"H x 4"W x 9"L WT: 0.55 lbs UPC: 742985191181

    3 in stock

    $134.00$75.50

  • Sale -32% Flojet Heavy Duty RV Water Pump w/Strainer - 12V - 4GPM - 50PSI [Q401V-117S-3A]

    Flojet Heavy Duty RV Water Pump w/Strainer - 12V - 4GPM - 50PSI [Q401V-117S-3A]

    6 in stock

    Heavy Duty RV Water Pump with Strainer - 12V - 4GPM - 50PSIFlojet’s RV water pumps are designed to provide years of satisfactory service in applications both large and small. The lineup features a wide range of flows and a variety of pressure settings to suit each individual need and preference. Standard models have a motor enclosed in a protective plastic housing, whereas the HD models include a wider diameter motor with a powder-coated steel shell, cast aluminum end bells, and lower housing to improve pressure capability and life. All models include an integrated pressure switch, vibration dampening rubber mounting feet, and quick-connect ports. A built-in bypass valve helps to reduce unwanted pump cycling and noise. All models other than the 1 GPM come with an inlet strainer included as well.Features: CSA certified for potable water Integrated, sealed pressure switch for on-demand operation Internal bypass for quiet, smooth operation Integrated, sealed pressure switch for on-demand operation Co-molded diaphragm technology for long life and durability HD models have larger motors and cast aluminum lower housings which allow for long life, even at high pressures Can run dry without damage Quick connect ports for ease of installation, servicing, and maintenance Vibration dampening mounting feet Self-priming allows for installation versatility Built-in backflow prevention valve Thermal protection on motor prevents overheating Specifications: 12VDC & 24VDC 4 GPM (15 LPM) 50 PSI (3.4 BAR) Strainer & port fittings included WARNING: This product can expose you to chemicals including ANTIMONY OXIDE (ANTIMONY TRIOXIDE) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.

    6 in stock

    $328.99$223.50

  • Sale -13% Jabsco Replacement Belt Kit f/Lite Flush [58542-1000]

    Jabsco Replacement Belt Kit f/Lite Flush [58542-1000]

    15 in stock

    Replacement Belt Kit for Lite FlushSpecifications: 9mm Drive Belt Packaged Dimensions: L:5.00 x H:5.00 x W:5.00cm Actual Weight: 0.10 Kg  (Approx. 0.30 Kg packed)

    15 in stock

    $33.99$29.50

  • Sale -30% Johnson Pump Aqua Void Automatic 500 GPH Bilge Pump - 12V [10-13626-03]

    Johnson Pump Aqua Void Automatic 500 GPH Bilge Pump - 12V [10-13626-03]

    11 in stock

    Aqua Void Automatic 500 GPH Bilge Pump - 12VWith its industry-first quick-change motor connection and new reinforced click-in basket, this bilge pump simplifies cleaning and installation, and it's convenient and efficient. Its enhanced motor ensures reliability and performance in any condition. Experience worry-free boating with Aqua Void.Experience the Industry-First Quick-Change Motor ConnectionJohnson Pump's groundbreaking product features a quick-change motor connection for hassle-free cartridge motor changes or capacity upgrades.Take Control of the Boating Experience with Unparalleled ConvenienceThe Aqua Void Cartridge Bilge Pump is designed with single-handed access, perfect for tight bilge spaces. The pump body is easy to install or remove, and an innovative reinforced click-in basket simplifies installation, cleaning, or inspection.Enjoy Enhanced Efficiency and Higher Flow RatePowered by an enhanced motor and high-flow impeller, the Aqua Void achieves increased efficiency and a higher flow rate while conserving energy consumption.Trust in Reliable Performance Under Demanding ConditionsJohnson Pump Marine is renowned for its industry-leading reliability. The Aqua Void lives up to this reputation with its robust construction and meticulous engineering.Enjoy a worry-free time on the water and experience Reliability On Board. The Aqua Void Bilge Pump is a game-changing solution that sets a new standard in bilge pumps. Don't miss this opportunity to enhance the boating experience. Get the Aqua Void today!Features: High-flow impeller design Quick-change motor connection Switchless automatic bilge pump with low-amp resistance monitoring Durable thermoplastic housing design commonality with removable motor cartridge Smaller profile than pumps with switches Straight or 90-degree dura port discharge ports with an included check valve Water-cooled motor, 316 stainless steel shaft, and permanently lubricated double bearings Clip-in basket Benefits: Heightened efficiency and an increased flow rate Enjoy quick and hassle-free cartridge motor changes or capacity upgrades Automatically monitors the presence of water through low-amp draw impeller spin The common body allows interchangeable motor cartridge replacement to the same or different size For tighter fit in smaller spaces Allow multi-directional hose routing, eliminate stress cracking without disengaging hoses or removing pumps, and reduce cycling from water backflow Corrosion-resistant and extended life Competitive Advantages: The most efficient and highest flow in the GPH capacity category Industry-first and only cartridge motor pump with an included harness connection requiring no cutting and splicing of wires 100 days of service before critical battery draw down* Automatically monitors the presence of water through low-amp draw impeller spin Ease of installation & maintenance Specifications: Pump Size: 500 GPH Capacity Straight (12V): 600 GPH (38 I/min) Voltage: 12V Amp: 2.7A Fuse: 3.5A Hose Connection: 3/4 in. Wire Size: 16 GA, TINNED Weight: 11.2 oz (0.32 kg) Body: ABS Dura Port: PA66/GF - Nylon Shaft: 316 Stainless Steel Shaft Seal: Nitrile Rubber Motor Cartridge: PC-ABS Pump Dimensions (W x H x L): 2.75 x 4.69 x 5.24 inches (70 x 119 x 133 mm) Specifications: Gallons Per Hour: 500 GPH Operation: Automatic Outlet Size: 3/4" Type: Pumps/Drives Volts: 12v Box Dimensions: 4"H x 5"W x 6"L WT: 1.2 lbs UPC: 7330717018184 Quick Guide (pdf)

    11 in stock

    $95.00$66.50

  • Sale -32%Last stock! Jabsco Ballast Pump [18670-9127]

    Jabsco Ballast Pump [18670-9127]

    4 in stock

    Ballast PumpThis Wake/Surf boat Ballast pump is the same one utilized by most major boat builders. The Jabsco pump comes standard with a green Run Dry Impeller. This pump has the standard electrical quick connector installed. Just connect your hoses, mount the pump into the boat, in its orginal position, plug the power leads together and your surfing and wakeboarding again. Impeller # 6303-0007-P - Always Carry a Spare Orignial OEM Ballast Pump Replacementttttt Run Dry Impeller - Greentttt Same electrical connection as Original OEM ttttt Same mounting as the OEM unit, no need to drill more holesttttt The leader for Flexible Impeller Ballast Pumps ttttttWARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Owner's Manual (pdf)

    4 in stock

    $439.99$299.50

  • Sale -32%Last stock! Rule 3700 G.P.H. "Gold Series" Bilge Pump [13A]

    Rule 3700 G.P.H. "Gold Series" Bilge Pump [13A]

    3 in stock

    Rule 3700Heavy duty construction for both commercial and pleasure boat use; known for trouble free operation and reliability. 1-1/2" (38mm) discharge outlet. 12 Volts DC unless noted.Features: Fully Submersible Easy clean snap lock strainer Silent and vibrationless operation Anti-airlock protection Compact, efficient long life motor Ignition protected No burn-out when run dry Rust and Corrosion protection Used by leading boatbuilders worldwide marine grade blocked wiring Specifications Voltage: 12 Vdc Amp Draw: 15.5 amp Fuse Size: 25 amp Height: 7 1/4 inches 184 mm Width: 4 7/8 Inches 124 mm Weight: 5-4 lb 2.4 kg Warranty: 5 years <WARNING: This product can expose you to chemicals including FORMALDEHYDE (GAS) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov. Specifications: Gallons Per Hour: 3700 GPH Operation: Non-Automatic Outlet Size: 1-1/2" Volts: 12v Type: Electric Box Dimensions: 7"H x 8"W x 11"L WT: 6.05 lbs UPC: 042237085818 Owner's Manual (pdf)

    3 in stock

    $434.99$296.50

  • Sale -47%Last stock! Johnson Pump Aqua Void Electro-Magnetic Combo 500 GPH Bilge Pump - 12V [10-13637-01]

    Johnson Pump Aqua Void Electro-Magnetic Combo 500 GPH Bilge Pump - 12V [10-13637-01]

    4 in stock

    Aqua Void Electro-Magnetic Combo 500 GPH Bilge Pump - 12VWith its industry-first quick-change motor connection and new reinforced click-in basket, this bilge pump simplifies cleaning and installation, and it's convenient and efficient. Its enhanced motor ensures reliability and performance in any condition. Experience worry-free boating with Aqua Void.This pump is combined with a non-clogging electro-magnetic float switch for automatic operation. The switch reacts to the level of water present in the bilge and automatically activates and deactivates the pump.Experience the Industry-First Quick-Change Motor ConnectionJohnson Pump's groundbreaking product features a quick-change motor connection for hassle-free cartridge motor changes or capacity upgrades.Take Control of the Boating Experience with Unparalleled ConvenienceThe Aqua Void Cartridge Bilge Pump is designed with single-handed access, perfect for tight bilge spaces. The pump body is easy to install or remove, and an innovative reinforced click-in basket simplifies installation, cleaning, or inspection.Enjoy Enhanced Efficiency and Higher Flow RatePowered by an enhanced motor and high-flow impeller, the Aqua Void achieves increased efficiency and a higher flow rate while conserving energy consumption.Trust in Reliable Performance Under Demanding ConditionsJohnson Pump Marine is renowned for its industry-leading reliability. The Aqua Void lives up to this reputation with its robust construction and meticulous engineering.Enjoy a worry-free time on the water and experience Reliability On Board. The Aqua Void Bilge Pump is a game-changing solution that sets a new standard in bilge pumps. Don't miss this opportunity to enhance the boating experience. Get the Aqua Void today!Features: Heightened efficiency with an increased flow rate - high-flow impeller design  Quick-change motor connection enjoy quick and hassle-free cartridge motor changes or capacity upgrades. Industry-first and only cartridge motor pump with included harness connection requiring no cutting and splicing of wires Water-cooled motor for long service intervals Compact, all-in-one motor/Impeller unit with stainless steel (316) Shaft No tools are needed for maintenance, no need for complete disassembly. You can now leave the pump casing attached to both the boat and the hoses.  Easy-to-install dura-port discharge ports to eliminate stress cracking caused by over-tightened hose clamps Include both a straight and a 90-degree smooth elbow dura-port as well as a removable check valve Meets the international standard, ISO 8849 marine Molded T-Slot - Easy Installation with Switches This cartridge pump combines an electro-magnetic float switch Specifications: Pump Size: 500 GPH Capacity Straight (12V): 600 GPH (38 I/min) Voltage: 12V Amp: 2.7A Fuse: 3.5A Hose Connection: 3/4 in. Wire Size: 16 GA, TAC Weight: 15.9 oz (0.45 kg) Body: ABS Dura Port: PA66/GF - Nylon Shaft: 316 Stainless Steel Shaft Seal: Nitrile Rubber Motor Cartridge: PC-ABS Pump Dimensions (W x H x L): 3.88 x 4.69 x 6.17 inches (99 x 120 x 157 mm) Specifications: Gallons Per Hour: 500 GPH Operation: Automatic Outlet Size: 3/4" Type: Pumps/Drives Volts: 12v Box Dimensions: 4"H x 6"W x 6"L WT: 1.2 lbs UPC: 7330717017958 Quick Guide (pdf)

    4 in stock

    $112.35$59.50

  • Sale -32% Jabsco Mag Drive Centrifugal Pump - 21GPM - 110V AC [436981]

    Jabsco Mag Drive Centrifugal Pump - 21GPM - 110V AC [436981]

    6 in stock

    Mag Drive Centrifugal Pump - 21GPM - 110V ACDesigned for applications that require a safe and leak free, continuous duty pump. Great for marine air conditioning circulation, Ice Makers, Hot water circulation, Livewell and Bait tank installations.Pump Head is manufactured in chemical resistant thermo-plastics - entirely non-metallic.UL listed, ignition and thermally protected fan cooled motor.Features: 21.13 GPM open Flow 110V AC 60Hz 3/4" NPT ports for easy connection 18 foot head WARNING: This product can expose you to chemicals including NICKEL (METALLIC) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov. Specifications: Volts: 110v Gallons Per Minute: 21 GPM Box Dimensions: 7"H x 10"W x 11"L WT: 7.7 lbs UPC: 671880624299 Quick Guide (pdf)

    6 in stock

    $559.99$381.50

  • Sale -45% Perko Gas Fill w/ Locking Cap f/ 1-1/2" Hose [0599DPGCHR]

    Perko Gas Fill w/ Locking Cap f/ 1-1/2" Hose [0599DPGCHR]

    12 in stock

    Gas Fill w/ Locking Cap for 1-1/2" Hose(0599) Chrome Plated Zinc Alloy Flange Black Plastic Body Black Plastic Cap w/ Strap Grounding Screw Included Cap Retainer and Gasket Locking Cap has a cover for the key hole Tech Info for Hose Size: 1-1/2" O.D. Flange: 3-1/8" Length of Neck: 3-1/8" Mounting Hole Dia.: 2-1/8" Screw Size: #8 Quick Guide (pdf)

    12 in stock

    $110.05$60.50

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