Not finding exactly what you need? If you own an old or unusual model of a furnace, you may need a non-standard size filter. Get the filters you need custom cut to size in any of the 3 common MERV ratings - 8, 11, 13 - when you shop at Filter Factory Outlet Store. Our filtering mediums are made from recycled materials so that they are both efficient and ecologically friendly.

Technical Terms

The new MERV 8 Pre-Pleat 40 filter features a filtering medium that is more efficient AND ecologically friendly. Made entirely from recycled materials, this media achieves MERV 8 efficiency with a low resistance to air flow. It is also unaffected by high humidity and is hydrophobic (non moisture absorbing). Pre-Pleat 40 Filters can upgrade existing flat panel filters as well as a MERV 6 or 7 pleated filters currently being used with little increase in resistance. Available in 1, 2, and 4 inch depths, standard and high capacity versions. All Pre-Pleat 40 Filters are 30-35% efficient by ASHRAE 52.1-92 and MERV 8. These filters are suitable for variable air volumes systems. Operating face velocity ranges are from 0 to 500 fpm for 1 inch and 2 inch filters, and from 0 to 625 fpm for 4 inch filters.

Technical Terms:

  • Anti-microbial Filters: Won't harbor growth of mold and bacteria
  • Natural Electrostatic: Attracts more dust and debris
  • Synthetic Fibers: Upstream electro-staticall charged E-Layer provides high initial efficiencies
  • Save Energy: Less restrictive, more efficient

Order Form

Regularly changing your filters is critical to maintaining good indoor air quality. Make sure that you know how long your filter is rated to run and change it on time.

Call today to have your filters delivered to your door.

208-658-1146
208-475-0711