Actual Dimensions: 19.13 x 19.88 x 4.25. Accumulair brand: 19x20x4.25 Day and Night FILBBFNC0021 substitute whole house air filters, exactly constructed to replace original brand Day and Night FILBBFNC0021 filters. Completely assembled so no assembly or combs required. MERV graded to ASHRAE 52.2 test specs assuring filtration to the level of the OEM Day and Night FILBBFNC0021 air filter. Note: The example filter image shown is not to scale and is displayed for style purposes. Company names and Day and Night FILBBFNC0021 identifier used for air filter replacement identification use.
Shipping and Returns
- Shipping is FREE to the contiguous United States.
Due to shortages and demand the current lead time is up to 10 business days to process.
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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