Marine Plumbing & Ventilation

Porta Potti 335 Marine Toilet with Hold Down KitThe Porta Potti 335 with the Hold Down Kit is a super compact portable toilet which is perfect to use on boats! The toilet is delivered with a special ‘hold down kit’ to attach the toilet to...

Porta Potti 135 Marine Toilet with Hold Down KitWhether you’re a day tripper or a week-long cruiser, our marine portables are compact, convenient and designed with marine-specific features and benefits. Thetford Marine Porta Potti –...

Pump Cover - Shower SumpClear Cover for Shower Sump Pump Specifications:Type: MiscBox Dimensions: 1"H x 8"W x 8"L WT: 0.4 lbsUPC: 729321031042

MSD Fitting f/Small Tank 970 Series ToiletsReplaces MSD fittings for Series 974 MSD models.  Converts Series 972 and 974 - 2.6 gallon models to MSD toilets.*Sold as an Individual WARNING: This product can expose you to chemicals including...

Seaward Thermostatic Mixer ValvePlumbing "safety fitting" for the Whale "Quick Connect" system. Thermostatic mixer valve using three 1/2" BSP Male threaded ports.Constructed of nickel-plated brass including non-return valve. Each BSP running thread is...

Seaward Magnesium AnodeFits all Seaward by Whale water heaters.Features:Material: MagnesiumLength: 4"Thread: 3/4" pipeWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other...

Seaward 11 Gallon Hot Water Heater with Rear Heat Exchanger - Stainless Steel - 240V - 1500WWhale Electric Water Heaters includes models with the very latest  technology. All heaters are manufactured from only highest quality materials and designed...

Seaward 11 Gallon Hot Water Heater with Front Heat Exchanger - Galvanized Steel - 240V - 1500WWhale Electric Water Heaters includes models with the very latest  technology. All heaters are manufactured from only highest quality materials and...

Marelon Full-Flow Seacock & 2" Mushroom Through-HullThis integrated 2-part system comes complete with a Marelon® valve and properly matched mushroom head thru-hull with super strong “buttress” type threading. This new package is...

Marelon Full-Flow Seacock & 1-1/2" Mushroom Through-HullThis integrated 2-part system comes complete with a Marelon® valve and properly matched mushroom head thru-hull with super strong “buttress” type threading. This new package is...

Marelon Full-Flow Seacock & 1-1/4" Mushroom Through-HullThis integrated 2-part system comes complete with a Marelon® valve and properly matched mushroom head thru-hull with super strong “buttress” type threading. This new package is...

Seaward 11 Gallon Hot Water Heater - Stainless Steel - 120V - 1500WWhale Electric Water Heaters includes models with the very latest  technology. All heaters are manufactured from only highest quality materials and designed to specifically...