AstralPool 22356 MPV, Astral 1-1/2" Side Mount, Universal, No Plumbing, 6 PosAstralPool Universal Multiport Valve Constructed of injection molded ABS, this valve allows for a 6 position operation: Filter, Backwash, Rinse, Recirculate, Close & Waste. Universal AstralPool Multiport Valves have a 6 screw type lid system that allows any system to be adapted with it. Pump, Filter and Backwash, and Waste connections are threaded. The "In" connection is threaded and the "Out" connection is slip. Standard PVC glue or Multi- purpose glue required. Do not use blue/quick type dry glue.