Lennox 78L20 Replacement Part
Includes:
- (1) - R44478-003 Valve-Expansion (78L20)
Replaces Old Lennox Part Numbers
- There are no older part numbers.
Other Part Numbers
R44478-003
Fits Models:
(Press ctrl + F to find model number below.)
Various. (Call 734-326-3900 with your model and serial number for more information.)