20 x 20 x 4 MERV 11 Aftermarket Replacement Filter (6 PACK)

Actual Dimensions: 19 1/2" x 19 1/2" x 3 3/4"
MERV 11, MPR 1000-1200, FPR 7
Fights lint, dust mites, mold spores, pollen, pet dander, dust, and smoke.
Every 12 Months
Qualifies for Free Shipping