Pentair Union 1-1/2" Kit | MasterTemp 125 Heater — MasterTemp Series | 474974 C7458 Replacing worn or clogged cartridges

Replacing worn or clogged cartridges restores the cleaner's filtration performance and suction efficiency

49" wall thickness

This helps the O-ring seat evenly in the union groove

while CX875XRE is Hayward's part number for the complete factory 4-cartridge pack — both are compatible with the Unicel C-7489

Pentair Union 1-1/2" Kit | MasterTemp 125 Heater — MasterTemp Series | 474974 C7458 Replacing worn or clogged cartridgesThe Pentair 474974 Union 1 1 2" Kit is the OEM replacement union package for the MasterTemp 125 pool heater, providing a complete set of 1 1 2" unions for heater plumbing connections. IMPORTANT: KIT LISTING MULTIPLE PIECES INCLUDED This listing is a kit, not a single union. The 474974 includes the complete union package required for the MasterTemp 125 heater plumbing connections. Refer to your equipment manual to confirm the components included in