TopTech - 20" x 20" x 4" (2 Pack) AA4-P52X - MERV 11

TopTech - 20" x 20" x 4" (2 Pack) AA4-P52X - MERV 11

$88.02

TopTech - 2 Pack

Nominal Size: 19.375" x 19.375" x 3.75"

They are rated at MERV 11 and remove many allergens, dust, pollen and other airborne pollutants.