Home Slickdeals Home Depot Arm & Hammer 20 in. x 25 in. x... Slickdeals Home Depot Arm & Hammer 20 in. x 25 in. x 1 in. (16 sizes) Enhanced Allergen and Odor Control FPR 6 Air Filter (4-Pack) $20 Free Shipping 3-15-18 only By ARCOM - 15 March 2018 168 0 SHARE Facebook Twitter Go to the deal page: Home Depot Arm & Hammer 20 in. x 25 in. x 1 in. (16 sizes) Enhanced Allergen and Odor Control FPR 6 Air Filter (4-Pack) $20 Free Shipping 3-15-18 only