Lennox 96L77 Heat Exchanger 320735-701 this comprehensive kit includes high-grade

this comprehensive kit includes high-grade NBR (Nitrile) seals

It is designed for select R4 series models requiring a 4-tube

ensuring high HVAC part compatibility across various pneumatic setups

while the normally closed configuration provides fail-safe safety by automatically halting gas flow if power is lost

Featuring auto-voltage detection

Lennox 96L77 Heat Exchanger 320735-701 this comprehensive kit includes high-gradeThe Lennox 96L77 Heat Exchanger (Catalog Number 96L77, superseding LB 58087BT) is a critical OEM replacement part engineered for high efficiency gas furnaces. This 125SS Heat Exchanger assembly is constructed from stainless steel to withstand high combustion temperatures and prevent premature thermal stress fracturing. Designed for large scale residential and light commercial Lennox units, it arrives as a robust assembly with a gross weight of 151