Actual Size: 20.1 x 25.7 x 5. Brand: Accumulair. 21x26x5 Honeywell TRN2621T1 replacement whole house air filters, exactly designed to replace the name brand Honeywell TRN2621T1 filters. Completely constructed so no assembly or combs required. MERV rated to ASHRAE 52.2 test ratings establishing operation to the level of the original brand Honeywell TRN2621T1 filter. Note: The example filter image as shown is not the actual dimensions and is included to show style purposes. Name brands and Honeywell TRN2621T1 part numbers are listed for filter substitution identification purposes.
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