Actual Dimensions: 19.75 x 24.25 x 4.75. Brand: Accumulair. 20x25x5 GeneralAire 4001 replacement whole house filters, exactly built to replace the OEM GeneralAire 4001 air filters. Fully assembled - no forming or combs required. MERV graded to ASHRAE 52.2 test standards establishing performance to the level of the original manufacturer GeneralAire 4001 filters. Notice: The example filter pic shown is not the actual dimensions and is displayed for configuration purposes only. Brand names and GeneralAire 4001 P/N included for filter style identification.
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.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.