Is this compatible with older part numbers

ensuring minimal voltage drop and secure terminal connections

What Conbraco series do these gaskets fit

The Johnson Controls T-4000-630 Conversion Kit is a field-proven solution for transitioning existing field-installed pneumatic thermostats to the T-4000 series

High-Temp Composition: Designed to resist degradation from high-temperature exhaust and acidic condensate

Lennox 18K44 Limit Switch Els PW 17895 Is this compatible with olderThe Lennox 18K44 Limit Switch is a high reliability OEM replacement normally closed safety control designed for precise thermal management in residential gas furnaces and air handlers. This auto reset limit switch is engineered to maintain system integrity by monitoring internal plenum temperatures. It is calibrated to an open on rise (cut out) setpoint of 280F to prevent thermal overload and a close on fall (cut in) setpoint of 250F for automatic