Actual Size: 19.13 x 19.88 x 4.25. Accumulair brand 19x20x4.25 BDP FILBBFNC0021 compatible whole house filters, exactly constructed to be an alternative to the original brand BDP FILBBFNC0021 air filters. Fully constructed - no assembly or combs required. MERV rated to ASHRAE 52.2 test standards assuring particulate capture equal to the OEM BDP FILBBFNC0021 air filters. Notice: The sample air filter pic shown is not to scale and is displayed for style only. Trade names and BDP FILBBFNC0021 P/N used for filter substitution identification purposes.
Shipping and Returns
- Our current lead times are 6-8 business days for standard filters (1"-6" thick sizes), and up to 10-14 business days for made-to-order filters (non-standard and 0.5" sizes). Delivery normally takes another 1-3 days depending on location.
- Shipping is FREE to the contiguous United States.
- 30-day 100% return policy.
Payment & Security
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