Key Benefits OEM Compatibility: Precision-engineered for a seamless Lennox 18K77 cross reference with original equipment specifications

it manages point-of-use pressure monitoring for liquid and gaseous media with extreme accuracy

this Type S coupler flange features a 1-1/4 inch finished bore with a standard 1/4" x 1/8" keyway

Key Benefits: Precise Pressure Regulation: Adjustable settings allow for tight control over compressor suction pressure to match actual evaporator loads

Maxitrol MR212D-1010 Valve Refrigerant Key Benefits OEM Compatibility: Precision-engineeredFor veteran HVAC contractors managing direct fired burner systems, the Maxitrol MR212D 1010 is the specific 1 1 4" NPT modulating gas valve designed for negative pressure applications. Engineered to handle a maximum inlet pressure of 5 PSI, this component functions as both a modulator and a high performance gas pressure regulator, eliminating the need for a separate upstream regulator in most configurations. It is identical to the MR212D 1 1 4,