Lennox 15W56 Pressure Switch 326058-756 Chemical and UV Stability: The

Chemical and UV Stability: The exclusively compounded black polyethylene provides protection against ultraviolet breakdown and common mechanical room contaminants

While the Parker LLD163 provides exceptional contaminant control

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

For technicians troubleshooting ignition failures or "3-flash" codes

Lennox 15W56 Pressure Switch 326058-756 Chemical and UV Stability: TheEnsure 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