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With a huge 56% more BTU's than most competitors above-ground pool heaters
Won't retain residual heat after the heater is turned off
The ColorQ 2x Pro 7 test kit was designed for pool and spa professionals to measure seven primary pool and spa tests on a digital display
Maximum body pressure 150 psi
Pentair MasterTemp 400,000 BTU HD Heater 461021 - ASME polaris With a huge 56% morePentair MasterTemp ASME HD Heater 461021 The ASME Certified MasterTemp heater is designed specifically for commercial properties such as apartments, condos, hotels, motels, schools, parks, community and high end private pools. In addition to being a ASME certified it is also a HD (Heavy Duty) heater that includes a cupro nickel exchanger that stand up to the harshest of applications, like low pH, high flow or heavy use. Pentair MasterTemp Heaters
