Lennox 71W28 Gasket 321702-401 Internal Safety Regulation: Prevents system

Internal Safety Regulation: Prevents system overheating by automatically breaking the electrical circuit when temperatures exceed safe limits

which provides superior physical and thermal strength compared to standard aftermarket alternatives

ensuring seamless integration into existing control strings

or sense a vacuum by connecting only the low-pressure port and leaving the other open to ambient pressure

Chemical Resistance: Designed to withstand exposure to oils

Lennox 71W28 Gasket 321702-401 Internal Safety Regulation: Prevents systemAs a seasoned technician, you know that a compromised seal on a 70 90 furnace can lead to pressure switch trips and combustion inefficiency. The Lennox 71W28 Gasket is the specific OEM collector box gasket designed to restore the airtight integrity of the flue system. Specifically engineered for Lennox furnace repair, this component (also identified as part number 102515 01) ensures that exhaust gases are properly contained within the collector box