Modine 5H0735910003 Pressure Switch Els PW 17895 it provides that extra room

it provides that extra room for thermal expansion when your blowers or pumps are running at high RPMs

The kit features a Thermodisc #12S22 305587 (P/N 259780) to ensure high-accuracy timing during heater cycling

Featuring a 36-inch lead length and a durable stainless steel outer jacket

professional-grade installation on Lennox residential furnaces

engineered to meet the exact manifold pressure and BTU requirements of compatible Raypak atmospheric boilers and heaters

Modine 5H0735910003 Pressure Switch Els PW 17895 it provides that extra roomThe Modine 5H0735910003 Pressure Switch is a critical safety component designed for precise differential air pressure monitoring in Modine HVAC systems. This SPST (Single Pole Single Throw) switch features a fixed set point of 0. 66" WC, ensuring the draft inducer or blower is moving sufficient air before allowing the ignition sequence to proceed. As a veteran grade OEM replacement part, this model is the direct technical successor to the discontinued