The 100208084 is fabricated from durable

OEM Integrity: Original equipment manufacturer part ensures compliance with original safety listings and operating specifications

preventing the pressure drops that lead to calibration drift in sensitive HVACR control loops

A normally closed switch like this should show 0 ohms at room temperature

Can this tube be used in ducts larger than 24 inches

Lennox 15M43 Rollout Switch The 100208084 is fabricated fromThe Lennox 15M43 Rollout Switch is a critical flame rollout safety switch designed for Lennox furnace repair and maintenance. Engineered to actuate at 270 degrees Fahrenheit (with a + 12 F tolerance), this OEM replacement part monitors for abnormal heat conditions in the burner compartment. As an SPST furnace switch (Single Pole Single Throw), it effectively opens the electrical circuit to the gas valve when temperatures exceed its calibrated