Pentair Natural Gas to Propane Conversion Kit 333 | Max-E-Therm 333NA | 77707-1451 Cartridge Filters it delivers reliable filtration performance

it delivers reliable filtration performance as a direct cross-reference replacement

Press firmly against hard surface until plastic is punched through

its ergonomic design makes it easy to carry

8 required per filter

shut off the water supply line to the automatic filler and depressurise the line

Pentair Natural Gas to Propane Conversion Kit 333 | Max-E-Therm 333NA | 77707-1451 Cartridge Filters it delivers reliable filtration performanceThe Pentair Natural Gas to Propane Conversion Kit (77707 1451) is the OEM replacement conversion kit for the Pentair (formerly Sta Rite) Max E Therm 333 Natural Gas pool heater. This kit is not included with the heater and must be ordered separately when converting the unit from natural gas to propane operation. IMPORTANT: KIT LISTING INCLUDES ITEMS 3 & 4 This listing is a kit, not a single component. It includes items 3 and 4 as identified in the Max