Our Accumulair brand 18x24x0.5 air filter is solely engineered to substitute for same sized 18x24x0.5 air filter type. Pleated electrostatically charged filter media captures airborne contaminants relative to its MERV rating. Material is free of chemicals. Note: Example filter picture as shown is not the actual dimensions and is displayed for style purposes. Database and 18x24x0.5 air filter variations last updated 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), and up to 8 weeks for bag filters.
Delivery normally takes another few days depending on location.
- 30-day 100% return policy.
Payment & Security
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