Pay in 4 interest-free payments of $5.12 Learn more
Ships within 48 hours · Estimated delivery Sep 4 - Sep 9
providing accurate modulation with approximately 120 steps of control
Smith models are compatible with this cleaning kit
eliminating the need for field rewiring
making it suitable for high-pressure distribution systems
Lennox 25W71 Gasket 326058-757 providing accurate modulation with approximatelyThe 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