Pentair Blower Natural Max-E-Therm 333K BTU 77707-0252 John Merkel 5 years ago Max-E-Therm 333K BTU Blower Natural made by Pentair77707-0252Used on the following heaters: Max- Pentair Sta-Rite 460764 400K BTU Max-E-Therm ASME Propane Gas HeaterDateDecember 4, 2018In relation toSimilar postPro Series JXi, Low NOx, 260,000 BTU, Propane, Stainless Steel Header Pool and Spa HeaterDateDecember 4, 2018In relation toSimilar postJandy Pro Series JXi 400K BTU Low-NOx Natural Gas Swimming Pool and Spa Heater – JXI400NDateDecember 4, 2018In relation toSimilar post