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 high-capacity design supports systems up to 15 tons

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

Reznor 220781 Venter Assembly Els PW 17895 Constructed with a high-impact ABSThe 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