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Plumbing & Ventilation

Maintain reliable water flow, sanitation, and ventilation systems on your vessel with high-quality marine plumbing and ventilation components. This category includes essential products such as bilge pumps, livewell pumps, engine cooling pumps, washdown systems, hoses, fittings, and thru-hull fittings, along with strainors, impellers, and transfer pumps designed to support boat plumbing systems. You’ll also find marine air conditioning units, fans, blowers, heaters, and ventilation equipment that help regulate airflow and temperature onboard. From portable toilets and sanitation systems to monitoring components and installation tools, Bluewater Marine Supply offers dependable solutions for maintaining critical onboard systems.

Marine plumbing systems are essential for water circulation, sanitation, and onboard comfort. From freshwater systems to washdown pumps and sanitation equipment, reliable plumbing components ensure smooth operation.

Key components include water pumps, hoses, fittings, and filtration systems, all designed to withstand marine conditions.

Proper installation and maintenance are critical to prevent leaks and ensure long-term performance.

Browse our marine plumbing and pump solutions for dependable onboard systems.

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  • GROCO Bronze Vented Loop - 1-1/2" Hose
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    GROCO

    GROCO Bronze Vented Loop - 1-1/2" Hose

    Bronze Vented Loop - 1-1/2" Hose Features:Allows air to enter to break siphon, but does not permit air and odors to escape! Cap is threaded 1/2" NPT to accept a barb fitting if you wish to vent overboard.Overboard venting is required if PVL or HVL...
    $374.55
    $218.63
  • GROCO Bronze Vented Loop - 1" Hose
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    GROCO

    GROCO Bronze Vented Loop - 1" Hose

    Bronze Vented Loop - 1" Hose Features:Allows air to enter to break siphon, but does not permit air and odors to escape! Cap is threaded 1/2" NPT to accept a barb fitting if you wish to vent overboard.Overboard venting is required if PVL or HVL...
    $329.70
    $192.90
  • Out of Stock
    GROCO Bronze Vented Loop - 3/4" Hose
    Out of stock

    GROCO

    GROCO Bronze Vented Loop - 3/4" Hose

    Bronze Vented Loop - 3/4" Hose Features:Allows air to enter to break siphon, but does not permit air and odors to escape! Cap is threaded 1/2" NPT to accept a barb fitting if you wish to vent overboard.Overboard venting is required if PVL or HVL...
    $332.00
    $194.23
  • Out of Stock
    GROCO Bronze Vented Loop - 1/2" Hose
    Out of stock

    GROCO

    GROCO Bronze Vented Loop - 1/2" Hose

    Bronze Vented Loop - 1/2" Hose Features:Allows air to enter to break siphon, but does not permit air and odors to escape! Cap is threaded 1/2" NPT to accept a barb fitting if you wish to vent overboard.Overboard venting is required if PVL or HVL...
    $345.80
    $202.14
  • Rule Shower Drain Box w/1100 GPH Pump - 24V
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    Rule

    Rule Shower Drain Box w/1100 GPH Pump - 24V

    Shower Drain Box with 1100 GPH Pump - 24VThis compact, full-capacity shower drain system provides 1100 GPH (4164 LPH) of output. Activated by a float switch, it turns on as the tank fills and shuts off when it’s empty. It has three inlet ports that...
    $297.49
    $192.10
  • Rule Shower Drain Box w/800 GPH Pump - 24V
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    Rule

    Rule Shower Drain Box w/800 GPH Pump - 24V

    Shower Drain Box with 800 GPH Pump - 24VThis compact, full-capacity shower drain system provides 800 GPH (3028 LPH) of output. Activated by a float switch, it turns on as the tank fills and shuts off when it’s empty. It has three inlet ports that...
    $262.99
    $170.11
  • Rule Shower Drain Box w/1100 GPH Pump - 12V
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    Rule

    Rule Shower Drain Box w/1100 GPH Pump - 12V

    Shower Drain Box with 1100 GPH Pump - 12VThis compact, full-capacity shower drain system provides 1100 GPH (4164 LPH) of output. Activated by a float switch, it turns on as the tank fills and shuts off when it’s empty. It has three inlet ports that...
    $262.99
    $170.11
  • Rule Shower Drain Box w/800 GPH Pump - 12V
    Add to Cart The item has been added

    Rule

    Rule Shower Drain Box w/800 GPH Pump - 12V

    Shower Drain Box with 800 GPH Pump - 12VThis compact, full-capacity shower drain system provides 800 GPH (3028 LPH) of output. Activated by a float switch, it turns on as the tank fills and shuts off when it’s empty. It has three inlet ports that...
    $257.24
    $166.50
  • Raritan Diaphragm Intake Pump - 24v
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    Raritan

    Raritan Diaphragm Intake Pump - 24v

    Diaphragm Intake Pump - 24vRaritan's Diaphragm Intake Pump and Motor AssemblySpecifications:24 VoltsWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm...
    $732.20
    $463.65
  • Out of Stock
    GROCO K Series Electric Marine Toilet - 24V
    Out of stock

    GROCO

    GROCO K Series Electric Marine Toilet - 24V

    K Series Electric Marine Toilet - 24VFeatures:House-size bowl3" piston pump mechanismAdjustable flow up to 4 GPMAll bronze pumpElectric or hand operated models are availableElectric models operate by touch of a button and are quickly converted to hand...
    $4,903.25
    $2,816.62
  • Out of Stock
    GROCO K Series Electric Marine Toilet - 12V
    Out of stock

    GROCO

    GROCO K Series Electric Marine Toilet - 12V

    K Series Electric Marine Toilet - 12VFeatures:House-size bowl3" piston pump mechanismAdjustable flow up to 4 GPMAll bronze pumpElectric or hand operated models are availableElectric models operate by touch of a button and are quickly converted to hand...
    $4,880.25
    $2,803.43
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