Actual dimensions are 19.75 x 24.25 x 4.75. Brand: Accumulair. 20x25x5 Armstrong AE20A-1 compatible whole house air filters, specifically designed to be an alternative to the OEM Armstrong AE20A-1 filters. Fully assembled - no forming or combs required. MERV classified to ASHRAE 52.2 test grades ensuring particulate capture as good or better than the original manufacturer Armstrong AE20A-1 filter. Notice: The sample filter picture shown is not the actual dimensions and is shown for configuration purposes only. Company names and Armstrong AE20A-1 identifier displayed for air filter substitution identification purposes.
Shipping and Returns
- Shipping is FREE to the contiguous United States.
- Our current lead times are 3-5 business days for stocked filters (standard 1"-5" thick sizes), up to 3 weeks for made-to-order filters (non-standard and 0.5" sizes).
Delivery normally takes another 1-3 days depending on location.
- 30-day 100% return policy.
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