You can replace the relay component specifically

Compatible with high-performance Schneider Electric pneumatic controls and legacy Barber Colman thermostats

60" WC differential ensures accurate response to flue pressure changes

Will this work for chilled water applications

a secure cover is non-negotiable for protecting the sealed Monel bellows and electrical connections

Maxitrol 325-5L-3/4-12A39 Regulator Els PW 17895 You can replace the relayThe Maxitrol 325 5L 3 4 12A39 is a high performance 3 4" line pressure regulator engineered for residential and commercial systems requiring precise natural gas pressure regulation. This lever acting model is designed to handle a maximum inlet pressure of 2 PSI while providing a stable outlet range of 7 11 inches water column. With its positive dead end lock up capability and factory installed 12A39 vent limiter, this unit ensures safety by preventing