Dometic Plumbing Parts & Accessories

Dometic Plumbing Parts & Accessories: OEM-Grade Sanitation Solutions for RV and Marine

When a sanitation system fails on the road or on the water, there is no room for compromise. Dometic has spent decades building one of the most trusted names in mobile living, and their plumbing parts and accessories reflect that same commitment to reliability. Whether you own an RV, a cruiser, or a trailerable powerboat, Dometic's plumbing hardware is engineered to fit precisely and perform consistently — because it's designed by the same company that built the toilet in the first place.

The SeaLand Legacy: Purpose-Built Sanitation Engineering

SeaLand, Dometic's dedicated sanitation brand, is the leading U.S. manufacturer of sanitation systems for the pleasure boat industry, offering a full line of systems from electronic flush technology to pedal flush and vacuum technology. That deep engineering heritage flows directly into Dometic's replacement parts ecosystem. Owners of SeaLand-branded toilets can source components — water valves, bowl seal kits, base seal kits, and spring cartridge kits — that are manufactured to the same specifications as the original hardware.

VacuFlush and MasterFlush: Advanced Systems, Backed by Real Parts

Vacuum energy is at the heart of every VacuFlush toilet system, making for exceptionally low water consumption. The advanced flushing technology uses very little water to effectively pull contents from the bowl through a vacuum vessel, while a macerating vacuum pump then pushes waste into a holding tank. Keeping these sophisticated systems running at peak performance means having access to the right replacement components. Dometic's plumbing parts lineup covers the full breadth of VacuFlush and MasterFlush service needs, including:

• Water valve kits — The Dometic Water Valve Kit fits most VacuFlush and Traveler/Gravity SeaLand toilets, and is the go-to fix when water droplets appear on the floor below the foot lever.
• Bowl seal kits — Dometic's toilet bowl seal kits deliver premium watertight, airtight integrity between upper bowl and lower base toilet components on thousands of marine and RV toilets.
• Plug-in base seal kits — OEM-spec seals for electronic flush models, ensuring a secure, leak-free connection at the base.
• Vacuum breakers — Available in standard or extended lengths, with or without sprayer, to suit a variety of SeaLand and VacuFlush configurations.
• Spring cartridge kits — Available for heads with metal pedal levers and plastic pedal levers, covering multiple toilet generations.
• Drive arm upgrade kits and control modules — For servicing 4000 Series VacuFlush toilets and MasterFlush electronic systems.

Why Choose Dometic Plumbing Parts?

Dometic's innovations include vacuum and macerator sanitation systems compliant with IMO and EPA standards, meaning their replacement parts support systems that are already held to strict environmental and regulatory requirements. Choosing genuine Dometic components rather than aftermarket alternatives ensures fit, function, and continued compliance. The company has built a sizable patent portfolio across sanitation and marine controls to protect these product evolutions, and that intellectual investment shows in the precision of every seal kit, valve, and cartridge they produce.

Whether you're performing routine maintenance on a pedal-flush RV toilet or rebuilding a VacuFlush system after a season on the water, Dometic's plumbing parts and accessories give you the confidence that comes from working with original-equipment components. Browse the full selection to find the right part for your specific model and get your system back to full operation.