Description
Actual dimensions are 20 x 25.63 x .75. Accumulair brand: 21x26x1 American Standard BAYFTAH26W1A compatible whole house air filters, specifically constructed to substitute for the name brand American Standard BAYFTAH26W1A filters. Fully built so no assembly or combs needed. MERV classified to ASHRAE 52.2 test classifications ensuring performance to the level of the OEM American Standard BAYFTAH26W1A air filter. Photo: Sample air filter image shown is not true to size and is shown for construction only. Company names and American Standard BAYFTAH26W1A part numbers used for air filter substitution purposes only.