Check the listing for details. Pentair 472610Z Switch Membrane Pad for MasterTemp Heater 250 300 350 400 Pool. Condition: New. Listed at 19.99 USD. Switch membrane pad replacement is a fit for MasterTemp pool and spa heater electrical system. The back of the membrane pad contains a high quality 3M adhesive pad for long lasting. Switch membrane pad replacement fixes the heating performance of your system.Ultra Durable, non-OEM Replacement Switch Membrane Pad Replacement for Pentair MasterTemp Pool and Spa Heater Electrical System 472610ZPremium Quality: We utilize premium, highly durable materials guaranteed to exceed OEM specificationsIf you are not sure this is for your model please send us a message and we can confirm fitment1 Million Presses GuaranteedHigh Quality Ribbon Connector for Fast and Easy ConnectionPentair 472610Z Membrane Pad for MasterTemp HeaterSta-Rite Membrane Pad MasterTemp HeaterPlease see below for the list of compatible model numbers.Purchase With Confidence!*** If your model number is not listed below, This will NOT fit ***If you don't see your model number, send us a message as we are happy to help! Fits Models:Fits Pentair MasterTemp Pool And Spa Heater Electrical SystemPool heater (Mastertemp 250)Pentair MasterTemp 400Sta-Rite heaterMaxETherm 400 Start Rite heaterPentair MasterTemp 300Fits Pentair and STA Rite OEM versionsFits both Pentair and Sta-Rite heater control panels.it works for the 250 and 400Pentair mastertemp 200Work For StaRite or Pentair Mastertemp 250, 300, 350 or 400 Pool or Spa Heaters