Actual dimensions are 19.88 x 24.88 x 4.38. Accumulair brand: 20x25x5 GeneralAire GA100A37 substitute whole house air filters, specifically constructed to be an alternative to the original brand GeneralAire GA100A37 air filters. Completely assembled - no forming or combs required. MERV classified to ASHRAE 52.2 test specs ensuring operation to the level of the name brand GeneralAire GA100A37 filter. Notice: The sample filter image displayed is not to scale and is displayed for configuration purposes only. Name brands and GeneralAire GA100A37 part numbers are listed for air filter replacement 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.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.