Plug-and-Play Integration: Standardized connector pins ensure rapid field substitution during service calls

barbed fitting air connection allows for quick integration with standard plastic tubing

What was the previous part number for this item

Whether you are troubleshooting a furnace not turning on or a dead contactor

5 lb stem force and a 1/4 inch stroke length

Lennox 25W71 Gasket R-407A Plug-and-Play Integration: Standardized connector pinsThe Lennox 25W71 Gasket is a critical OEM replacement part designed specifically for sealing the collector box cover in high efficiency Lennox furnaces. As a veteran tech knows, a compromised seal at the secondary heat exchanger leads to pressure switch trips and dangerous flue gas leakage. This precision engineered furnace collector box gasket (also indexed under 100742 01) ensures an airtight, negative pressure environment required for the draft