Pentair 073999 IID Propane Gas Valve Replacement MiniMax and PowerMax Pool/Spa Heater IID propane gas valve replacement Fits Pentair MiniMax CH and Plus pool and spa heater models 150 IID, 150, 200, 250, 300, 350, 400 Also fits Pentair PowerMax pool and spa heater models 150, 200, 250, 300, 350, 400