Lochinvar & A.O. Smith 100110715 Inlet Switch 328140-751 featuring a 1/2" x 1/2"

featuring a 1/2" x 1/2" NPT configuration that ensures seamless integration into existing Bard wall-mount units and furnaces

What is the difference between the 94 and the 94-M versions

By replacing a fouled or sluggish gauge with this genuine Weil McLain 383-500-210

Applying line voltage to the coil will result in immediate failure

Lochinvar & A.O. Smith 100110715 Inlet Switch 328140-751 featuring a 1/2" x 1/2"The Lochinvar & A. O. Smith 100110715 Inlet Switch is a critical safety component designed for high efficiency commercial and residential water heating systems. This OEM replacement part is the current updated version for the legacy 9005900215 and 193363 models. As a normally closed blocked inlet pressure switch, it monitors the air intake for obstructions. If the negative pressure at the combustion air inlet deviates from factory setpointsoften due