21x26x4 Lennox PCO-20C Pure Air Housing Air Filter

Product Description
Our 21x26x4 Lennox substitute filters are specifically designed to install in the name brand PCO-20C Pure Air housing. Our filters are MERV tested to ASHRAE 52.2 test ratings ensuring that our filters will capture particulate as good or better than the name brand Lennox air filter. Our air filters can be selected with Odorban odor isolating carbon material. *Brand names are shown for air filter style identification purposes only.
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  • 21 x 26 x 4 nominal size
  • 20-3/4 x 25-3/4 x 3-3/4 actual size
  • Installs in Lennox housing part number: PCO-20C Pure Air
  • Quality Filters Envaero brand
  • Specifically designed to fit the OEM housing
  • Preassembled in frame for ease of installation. (No need for expanding, extra combs, end-caps, etc.)
  • MERV classified to ASHRAE ratings
  • Option of OdorBan odor eliminating carbon-inlayed technology
  • 2 filters to a case
Quantity of Filters in Case
Efficiency Rating
Quantity of Cases
$ 64.90 per case