This Accumulair 16.25x21.25x4 air filter is exactly built to substitute for similarly sized 16.25x21.25x4 air filter type. Pleated electrostatic charged media captures airborne substances relative to its ASHRAE MERV specification. Chemical free material. Notice: The example filter picture shown is not the actual dimensions and is included to show design only. Current stock and 16.25x21.25x4 air filter specs are up to date as of 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.
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