McDonnell & Miller 324500 O-Ring back out the adjustment screw

back out the adjustment screw

This specific part number (-859 suffix) is generally rated for low-temperature applications up to 450°F

Simplified Installation: Includes the core LP gas conversion parts needed to modify the regulator without replacing the entire valve

Common indicators include visible rusting

McDonnell & Miller 324500 O-Ring back out the adjustment screwMaintain precise system pressure and eliminate leak paths with the McDonnell & Miller 324500 Tetraseal O Ring. This pack of five high performance seals is the engineered replacement for the discontinued 324435 part number, ensuring a direct fit without the need for field modifications. Designed as a critical boiler control replacement part, these o rings are specifically optimized for low water cut off (LWCO) and mechanical water feeder assemblies.