![Lennox 67M41 Defrost Air Tempering Kit, FM21 specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-67m41-specs.png?v=1794096980&width=1445)
The Lennox 67M41 (FM21) is a defrost air tempering kit used in heat pump systems to temper supply air during the defrost cycle. This is a genuine Lennox replacement part.
Confirm the part number against your equipment's parts list before ordering.
Specifications
| Part Number | 67M41 |
|---|---|
| Brand | Lennox |
| Type | Defrost Air Tempering Kit |
| Model | FM21 |