This Accumulair 16.5x21x1 air filter is exactly constructed to be compatible with same sized 16.5x21x1 air filter specs. Pleated static charged filter media traps airborne substances relative to its MERV specification. Chemical free. Notice: The sample filter image shown is not to scale and is displayed for design purposes only. Database and 16.5x21x1 air filter statements last verified on 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.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.