Direct OEM Fitment: Engineered as the exact replacement for 61-21922-69

Constructed with a high-impact ABS case and a glass-passivated thermistor sensor

this diaphragm provides the reliable seating force required for restricted-space installations

The Lennox 58W01 Blower Assembly is the exact OEM replacement required to restore the pressure differential needed to close the circuit on the pressure switch

it provides excellent chemical resistance and leak-proof performance in systems handling water

Reznor 220781 Venter Assembly Els PW 17895 Direct OEM Fitment: Engineered asThe Reznor 220781 Venter Assembly is a critical replacement component engineered specifically for high efficiency Reznor unit heaters. Operating at 208 230V, this draft inducer blower is designed to facilitate proper combustion air flow and exhaust gas removal, ensuring the furnace maintains optimal pressure switch cycles and heat exchanger integrity. For contractors performing maintenance or repairs on Reznor UDAP or UDAS series heaters, this