Plumbing Parts & Accessories

Marine & RV Plumbing Systems and Components

Whether you're outfitting a boat, maintaining an RV, or upgrading portable sanitation equipment, quality plumbing parts and accessories are essential for reliable onboard water and waste management. Marine and recreational vehicle plumbing systems face unique challenges—saltwater corrosion, tight spaces, odor control, and the need for compact, efficient designs that can withstand constant movement and vibration. From sanitation devices and holding tanks to deck fills, hoses, and valves, these specialized components are engineered to deliver dependable performance in demanding environments.

Marine plumbing encompasses everything from freshwater distribution and waste discharge systems to thru-hull fittings, strainers, and specialized marine toilets. Quality materials like bronze, stainless steel, and marine-grade plastics resist corrosion and ensure longevity in harsh saltwater conditions. RV plumbing systems share many of the same space constraints and require components that can handle both pressurized freshwater systems and waste holding tanks with minimal maintenance. Proper installation and high-quality parts prevent common issues like odor permeation through hoses, valve failures, and tank sensor malfunctions.

Leading Manufacturers in Marine & RV Plumbing

When selecting plumbing components for marine or RV applications, choosing trusted manufacturers makes all the difference. Perko has been manufacturing marine hardware and plumbing components since 1907, offering deck fills, thru-hull fittings, water outlets, intake strainers, and fuel system vents built from corrosion-resistant bronze and chrome-plated materials. Raritan Engineering is renowned for their complete line of marine sanitation systems including electric and manual toilets, macerator pumps, holding tanks, and odor-resistant SaniFlex hoses that are 15 times more resistant to odor permeation than standard PVC. Thetford serves both marine and RV markets with their extensive range of toilets, cassette systems, porta potties, and sanitation treatments—offering everything from compact portable units to full electric flush systems with macerator technology.

Additional trusted names include SeaSense, which provides affordable marine plumbing fittings and accessories designed for recreational boaters, and Johnson Pumps, known for their reliable bilge pumps and marine plumbing pump solutions that keep water flowing exactly where it should. Each of these manufacturers brings decades of experience designing components that meet Coast Guard standards, resist UV degradation, and deliver trouble-free operation season after season.

Key Considerations for Plumbing Parts Selection

When upgrading or repairing marine and RV plumbing systems, material compatibility is paramount. Bronze and stainless steel fittings prevent galvanic corrosion in saltwater environments, while reinforced sanitation hoses with odor-barrier technology eliminate the unpleasant smells that plague cheaper alternatives. Pay attention to fitting sizes and thread types—NPT (National Pipe Thread) is standard in most applications, but some European marine equipment uses BSP threads. Holding tank treatments and proper ventilation systems are equally important for maintaining a clean, odor-free environment, especially in enclosed spaces like boat cabins and RV bathrooms.