Our Accumulair 16x21x1 air filter is exactly made to substitute for similarly sized 16x21x1 air filter style. Pleated electrostatically charged media captures contaminants in the air relative to its MERV specification. Free of chemicals. Note: The example filter picture displayed is not the actual dimensions and is shown for style purposes only. Current stock and 16x21x1 air filter variations last verified on 03/24/2020.
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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