TruDesign Aquavalve Through Bulkhead (up to 15mm thick) WhiteThe most versatile Y Valve on the market with the ability to mix and match fittings, adjust the angle of piping and flip the face plate to suit the installation. The TruDesign Aquavalve is designed for the diversion and control of the flow of effluent or water. Used in marine toilet applications the effluent can be channelled overboard or held in a holding tank for later discharge overboard or to a shore side facility. Clear indication of which port