70" WC SPST switch provides a critical fail-safe for modern heating equipment

the actuator typically requires a 0-20 psi control signal to achieve full stroke across the entire modulating range

and small boilers

saving space and material costs

though it can be converted for Liquid Propane (LP) with the appropriate orifice change

Warrick 3E5B Series 3E Refrigerant 70" WC SPST switch providesThe Warrick 3E5B Series 3E is a heavy duty, pressure tight electrode fitting designed for dependable liquid level control in demanding industrial environments. Engineered with a robust red brass body, this 3 inch NPT multi probe fitting accommodates up to five electrodes, making it a staple for contractors managing complex boiler feed, pump control, or wastewater systems. Its cast metal construction ensures a secure, leak proof seal capable of