Actual dimensions are 20.1 x 21.1 x 5. Accumulair brand, 21x21.5x5 Honeywell TRN2121T1 substitute whole house filters, specifically constructed to substitute for the original brand Honeywell TRN2121T1 filters. Fully constructed so no assembly or combs needed. MERV classified to ASHRAE specs establishing performance equal to the name brand Honeywell TRN2121T1 air filter. Notice: Example filter image shown is not to scale and is shown for style only. Company names and Honeywell TRN2121T1 P/N displayed for air filter replacement identification only. Catalog and specs last verified on 03/29/2020.
Shipping and Returns
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- Orders take 1-3 business days to process.
(Custom & bag filters take 5-7 business days.)
Delivery normally takes another 1-3 days depending on location.
- 30-day 100% return policy.
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