McDonnell & Miller 157S Controller 30067439-890 the Uni-Match technology is specifically

the Uni-Match technology is specifically designed to interface with both modern probe-style and traditional float-style mechanical controls

Common Questions Can the RIBH2C be used to switch 277V lighting loads

Is this compatible with LP gas

20 SCIM Air Consumption

Versatile Application: Suitable for a wide temperature range of -60°F to 406°F

McDonnell & Miller 157S Controller 30067439-890 the Uni-Match technology is specificallyThe McDonnell & Miller 157S is a heavy duty combination low water cut off and pump controller engineered for commercial and industrial steam and hot water boilers. This specific OEM part #173502 features the 157S series head mechanism (part #173003) equipped with a snap acting SPDT switch. Designed for high pressure applications up to 150 psi (10. 5 kg cm), this controller ensures precise liquid level management, acting as a critical failsafe by