York S1-025-26357-000 Rollout Switch 012 dual orifice optimized for

012 dual orifice optimized for Liquid Propane gas flow and stability

The standard 163 model uses 3/8" SAE male flare connections

you can calibrate your gas pressure regulator to a tighter 2 to 5 inches water column range

This pneumatic relay supports an operating branch pressure range of 0 to 20 PSI and is robust enough to handle a maximum supply pressure of 30 PSI

York S1-025-26357-000 Rollout Switch 012 dual orifice optimized forThe York S1 025 26357 000 Rollout Switch is a critical safety component designed for furnace rollout protection in York, Coleman, and Luxaire gas fired units. This SPST (Single Pole Single Throw) manual reset limit switch is calibrated to open at 175 degrees Fahrenheit and close at 135 degrees Fahrenheit, effectively monitoring for flame rollout conditions that indicate heat exchanger failure or venting obstructions. As a genuine OEM York replacement