18.5" x 21" x 1" MERV 11 AC & Furnace Filters (6 Pack)

Made in USA
  • SP-18.5x21x1A-P11M6

List Price $202.34

Our Price: $101.17

Save: $101.17!
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Made to order (Ships in 3 business days)
Replace every 3 months
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  • Product Overview
This item is made to order, non-returnable, and ships within 2-4 business days. Please check the actual dimensions listed below prior to ordering.
Notice: Air filters are often cut slightly smaller than the actual measurement during the manufacturing process. A margin of error of up to 1/8" is allowed without negatively affecting the overall fit and performance of the air filter.
MERV 11 18.5x21x1 Furnace Filter Overview
  • This is a non-standard size filter. The actual dimensions of the filter are 18.5" x 21" x 0.75". Please measure your existing filter before ordering to make sure it will be compatible.
  • Long-lasting value package
The MERV 11 21 x 18-1/2 x 1 furnace & air conditioner filter will remove the following contaminants:
  • Lint & Dust
  • Dust Mite Debris
  • Pollen
  • Mold Spores
  • Pet Dander
  • Auto Emissions
  • Smoke
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