20x25x5 (19.75 x 24.25 x 4.75) MERV 13 Accumulair Replacement Filter for Armstrong $23.17 Available FeaturesNominal size 20" x 25" x 5" (Actual size 19 5/8" x 24 3/8" x 4 3/4")Pre-applied gasketing on the assembled filter prevents air by-pass.Great for reducing air borne particles such as dust,... Compare Add to Cart
20x25x5 (19.75 x 24.25 x 4.75) MERV 8 Accumulair Replacement Filter for Armstrong $15.81 Available FeaturesNominal size 20" x 25" x 5" (Actual size 19 5/8" x 24 3/8" x 4 3/4")Pre-applied gasketing on the assembled filter prevents air by-pass.Great for reducing air borne particles such as dust,... Compare Add to Cart
20x25x5 (19.75 x 24.25 x 4.75) MERV 11 Accumulair Replacement Filter for Armstrong $20.50 Available FeaturesNominal size 20" x 25" x 5" (Actual size 19 5/8" x 24 3/8" x 4 3/4")Pre-applied gasketing on the assembled filter prevents air by-pass.Great for reducing air borne particles such as dust,... Compare Add to Cart
20x25x5 (19.75 x 24.25 x 4.75) Carbon Odor Block Accumulair Replacement Filter for Armstrong $31.02 Available FeaturesNominal size 20" x 25" x 5" (Actual size 19 5/8" x 24 3/8" x 4 3/4")Pre-applied gasketing on the assembled filter prevents air by-pass.Great for reducing air borne particles such as dust,... Compare Add to Cart