Pentair Coil/Tubesheet Sealing O-Ring Kit | Max-E-Therm 400 & MasterTemp 400 Heaters | 77707-0119 PS3868 This listing is for 1

This listing is for 1 cartridge

confirm the part number stamped or molded on your existing hose cone matches K121110

no compromises

locate the date code on your heater's rating label — typically found on the inside of the heater cabinet door or on the rear panel

0 HP 013075 Universal touchscreen add-on for IntelliPro3 VSF pump models Pentair IntelliPro3 VSF 3

Pentair Coil/Tubesheet Sealing O-Ring Kit | Max-E-Therm 400 & MasterTemp 400 Heaters | 77707-0119 PS3868 This listing is for 1The Pentair Coil Tubesheet Sealing O Ring Kit (77707 0119) is the OEM replacement O ring set for the water system coil and tubesheet sealing points in the Max E Therm 400 and MasterTemp 400 series heaters. This kit contains 12 O rings the complete set required to service all coil tubesheet sealing positions in the 400 model heat exchanger assembly. IMPORTANT: KIT OF 12 O RINGS NOT A SINGLE PIECE This listing is a kit of 12 O rings. All 12 are required