maintaining system integrity and efficient fluid transfer across various refrigeration replacement kits and compressor models

Integrated Dual Aux Switches: Factory-installed SPDT switches eliminate the need for external add-ons to confirm damper position

this switch offers high accuracy and rapid response times (open high pressure)

This high-performance HVAC ignition component features a critical 57 inch lead wire

McDonnell & Miller 51-S Feeder Freon maintaining system integrity and efficientThe McDonnell & Miller 51 S (Part Number 135600) is a heavy duty mechanical water feeder designed specifically for high capacity steam and hot water boilers. Engineered for systems with a maximum vessel pressure of 35 PSI and a maximum water supply pressure of 100 PSI, this unit provides a reliable proportional feed action to maintain optimal water levels without the hunting common in electronic setups. It features 1" NPT connections for high flow