Eaton Cutler-Hammer 3457B16G01 Trim Lock 320788-704 This zero differential valve requires

This zero differential valve requires no minimum pressure to operate

which is critical for preventing heat exchanger overheating or evaporator coil freeze-ups

This unit is specifically engineered for Slant Fin boiler models like the Sentry (S-series)

System Reliability: Automatic lead/lag rotation balances component wear

Leak-Resistant Seal: Supplied with two premium gaskets to maintain vacuum integrity and prevent refrigerant loss under high-pressure conditions

Eaton Cutler-Hammer 3457B16G01 Trim Lock 320788-704 This zero differential valve requiresThe Eaton Cutler Hammer 3457B16G01 Trim Lock is a critical hardware component designed for securing the structural integrity of Pow R Line panelboards and load center interiors. Engineered as a direct replacement for WestingHouse and Cutler Hammer trim assemblies, this lock mechanism ensures the flush or surface mounted trim remains seated against the tub or box, maintaining the NEMA rating and interior safety barriers. This panelboard trim lock