Actual size is 20.75 x 20.63 x 5. Brand: Accumulair. 20x21x5 Emerson SST 16C28S-010 replacement whole house air filters, exactly designed to replace the OEM Emerson SST 16C28S-010 filters. Completely constructed - no forming or combs required. MERV rated to ASHRAE 52.2 test ratings establishing performance as good or better than the OEM Emerson SST 16C28S-010 filter. Note: The sample air filter pic as displayed is not the actual dimensions and is there to show design only. OEM names and Emerson SST 16C28S-010 P/N are included for filter replacement identification purposes only.
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