This insulation kit is designed to use with Pentair MasterTemp pool and spa heaters and also compatible with Pentair Sta-Rite Max-E-Therm pool and spa heaters. Fits Pentair MasterTemp pool and spa heaters. Also fits Pentair Sta-Rite Max-E-Therm pool and spa heaters. Arrival time will depend on your location. If you have any questions, feel free to ask. Thank you for visiting! Weight:5.0000SCID:181070Dimension:18.000×7.000X19.000.