, 6PK Made in the USA. These filters have a MERV 11 rating: Removes dust, pollen, mold, dust mites, pet dander, smoke, smog, and lint. AF MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800 (clean living and dust & pollen). 14X20X2 MERV 11 Pleated AC Furnace Air Filter, 6PK.
Formulated for direct-to-metal* and concrete applications as well as acid and chemical resistant applications.Only apply to ferrous metal that is properly prepped and primed to receive a water based coating.
Not only is it safer than treated lumber, its strong! What's even better is that the walls are completely stackable and connect via a robust pin system.