Lennox 15W56 Pressure Switch THPU32HP7Y maintaining the mechanical integrity and

maintaining the mechanical integrity and calibration of the Sensus 496 service regulator

this unit is a primary ZR57K3E-PFV-930 replacement and is also compatible with the ZR57K3E-PFV-830

maintaining the same direct-acting logic and single-pipe configuration

Optimize your gas pressure control with the Maxitrol R11110-48

this 1/2" NPT valve ensures optimal combustion efficiency through accurate manifold pressure management

Lennox 15W56 Pressure Switch THPU32HP7Y maintaining the mechanical integrity andEnsure the safe and efficient performance of your heating system with the Lennox 15W56 Pressure Switch. This genuine OEM replacement part, also identified as 65289300, is a critical safety component designed to monitor airflow and venting pressures within the combustion chamber. Engineered specifically for Lennox furnaces and unit heaters, this SPST pressure switch features a precise 0. 43" WC setpoint and a standard 1 4" barb connection for seamless