This 4-inch dial gauge features a 0-100 PSI range and a standard 1/4" NPT lower mount connection

often referred to as a TP-75 pilot generator

Industrial Durability: Constructed from high-strength cast iron to manage condensate load and pressure spikes

brazed seal

and ICM271

McDonnell & Miller 750-MT-24 Control R-410A This 4-inch dial gauge featuresThe McDonnell & Miller 750 MT 24 (Part Number 176293) is a heavy duty 24Vac manual reset low water cut off designed for professional integration into both hot water and steam boilers. As a veteran grade electronic LWCO, this unit serves as a reliable primary or secondary control for commercial and industrial hydronic systems. This GuardDog Series 750 control features a manual reset mechanism, ensuring that once a low water condition is detected and