McDonnell & Miller 323400 Head Gasket 318820-201 significantly extending the service life

significantly extending the service life of the mechanical contactor

Durable metal construction resists warping and thermal degradation during long heating cycles

Designed specifically for Lennox TUA series models

The default run time is 90 seconds

McDonnell & Miller 323400 Head Gasket 318820-201 significantly extending the service lifeWhen you are performing a teardown on a boilers low water cut off, a blown or degraded McDonnell & Miller 323400 head gasket is often the culprit behind persistent steam leaks at the flange. This Model 92 68 replacement gasket is engineered specifically for the 94 Series and 194 Series pump controllers and low water cut offs. As a veteran grade boiler replacement part, it provides the critical seal required between the valve assembly and the float