Description
The Lennox 71W19 Aluminum Frame & Mesh Filter 21X33X1 is a high-quality, reusable air filter that is suitable for use in heating and cooling systems. It has a MERV 4 rating and effectively, removes large airborne particles such as dust, lint and pet hair to ensure clean air inside the house. The durability of this model is provided by an aluminum frame, and the mesh structure makes it possible to increase air flow through the system, decreasing the load on the equipment, this filter is used in most of the air handlers and furnaces and it offers better filtration without compromising on the air flow rate.
