18x18x1 Furnace and AC Filters

Heavy-Duty Construction The EZ Flow II filter frame is made from heavy chipboard in a one-piece design that eliminates corner separation. The filte...

EZ Flow filter by Flanders AAF. The low initial pressure drop and robust construction of this filter make it a solid choice to protect residential ...

Flanders Pre Pleat 40 LPD filters are one of the best selling filters we carry. Originally designed with commercial applications in mind it's now o...

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 5...

The Naturalaire Standard MERV 8. The Naturalaire Standard has an ASHRAE 52.2 rating of MERV 8. This filter is convenient to use and easy to replace...

With a MERV 10 rating, the Flanders NaturalAire Microparticle electrostatically charged filter not only protects your HVAC system, it helps protect...

The manufacturer has discontinued this filter. The recommended replacement is the AAF Flanders EZ Flow Filters >> Click Here Metal reinforcem...

18 x 18 x 1 pleated filters in the the exact size of 18 x 18 x 1. Finding the perfect fit filter isn't always easy so we teamed up with AAF Flander...

18 x 18 x 1 grille replacement pleated filters that have an exact size of 17 1/8 x 17 3/8 x 1. Finding grille cut filters can be a challenging task...

18 x 18 x 1 basic filters in the the exact size of 18 x 18 x 1. Finding the perfect fit filter isn't always easy so we teamed up with AAF Flanders ...