Our Accumulair 12x18x4 air filter is exactly made to be compatible with same sized 12x18x4 air filter specs. Pleated electrostatic charged media traps airborne particles relative to its MERV rating. Chemical free material. Notice: Example filter picture as shown is not to scale and is included to show style only. Current stock and 12x18x4 air filter variations 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
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