000 PSI operating limit comfortably exceeds the requirements for residential and commercial R-410A high-side pressures

This specific Source 1 flame sensor is optimized for model series starting with DGAA and DGAH

As a heavy-duty universal air pressure switch

While the 904574 fits many mobile home and residential gas furnaces

the 168303 is the internal cartridge and identification tag only

Nordyne 667277 Blower Wheel Els PW 17895 000 PSI operating limit comfortablyThe Nordyne 667277 Blower Wheel is a precision engineered OEM furnace replacement part designed for high static pressure applications in residential and light commercial HVAC units. Featuring a 11x10 double inlet configuration, this CW rotation blower wheel is balanced at the factory to eliminate vibration and mechanical resonance, protecting the service life of your blower motor. Constructed from heavy duty galvanized steel, it provides the