We supply plumbing parts and accessories including most any Plastic Valve that you will need for installation or repair in boats. Look here for a selection of valve types in non-corrosive plastics or Marelon (glass-reinforced Nylon), including Ball Valve, 3-Way Valve, Y-Valve, Diverter Valve, and Full Flow Valve, to fit pipe or hose.
Even though built of non-corrosive materials, these valves work with moving parts in the harsh marine environment and still require routine inspection and lubrication. Remember to actuate their handles and lubricate their seals on a regular schedule.
Diverter Valves and "Y" Valves specifically designed for waste systems can also be found in the Toilets, Parts & Accessories Category of this Plumbing Section - use this link: Toilets, Parts & Accessories