Description

The Pentair 474952 is the combustion chamber o-ring kit for the MasterTemp 125 pool heater. It is the genuine Pentair part and belongs to the heater burner system group.

When you need it

The combustion chamber has to seal on reassembly. Any job that opens it up, igniter work, burner tray service, an inspection after a shutdown, disturbs the seals, and a seal that has been compressed once has usually taken a permanent set. Refitting an old one is the common reason a chamber will not close up tight again.

Before you order

This kit is listed for the MasterTemp 125. The larger MasterTemp models use their own seal parts, so check the model plate on the heater rather than going by the family name.