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Lennox Furnace Switch Parts
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Interlock Switch 21W03
Interlock Switch 21W03
Item #2708665 | Lennox OEM Part #21W03
Switch-interlock
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365-Day Return Policy
$48.60
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Interlock Switch 21W03 Part Fits
Replaces Part Number 101020-01
Interlock Switch
$48.60
On Order
Add to Cart