This Accumulair 17.5x23.5x4 air filter is exactly built to be a replacement for similarly sized 17.5x23.5x4 air filter specs. Pleated electrostatically charged filter material traps airborne substances relative to its ASHRAE MERV specification. Chemical free material. Note: The sample filter picture shown is not the actual dimensions and is displayed for construction purposes only. Current stock and 17.5x23.5x4 air filter specs are up to date as of 03/24/2020.
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.
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