Colorfil AC Furnace Filter (4" and 5" depth)

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  • Removes odors, chemicals, and allergens from your air.
  • Color changes to yellow when ready for replacement.
  • Built with direct support from NASA.
  • Every filter sold donates $1 to animals in need.
  • FREE Shipping in USA, made in USA.
  • Looking for 1" depth filters? Get them here.
  • FULL SIZING CHART CLICK HERE
SAVE an ADDITIONAL 25% with Code SPRING25 for a Limited Time Only
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