Lennox 15W56 Pressure Switch 326058-756 Using an incorrectly sized diaphragm

Using an incorrectly sized diaphragm will result in immediate seal failure and zero stroke control

While the Parker LLD163 provides exceptional contaminant control

this harness is the direct S1-02541088000 replacement for units like the RAC13J604S21A and various 25

Adjustable crank-arm configuration

Lennox 15W56 Pressure Switch 326058-756 Using an incorrectly sized diaphragmEnsure 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