Actual dimensions are 19.75 x 20.75 x 4.88. Accumulair brand 20x20x5 Trion Air Bear 229990-003 style whole house air filters, exactly constructed to replace the name brand Trion Air Bear 229990-003 filters. Completely constructed so no assembly or combs needed. MERV classified to ASHRAE 52.2 test grades ensuring function equal to the original manufacturer Trion Air Bear 229990-003 air filter. Photo: Sample filter picture shown is not the actual dimensions and is displayed for design only. OEM names and Trion Air Bear 229990-003 identifier are shown for air filter substitution identification only.
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