BestAir® 20 x 25 x 4 in. Air Cleaning Furnace Filter, MERV 8, Removes Allergens & Contaminants, For Honeywell Models Size:20" x 25" x 4" Screw-thread battery cap with O-ring

Screw-thread battery cap with O-ring ensures protection against dust and water ingress

Consult specific UL® Fire Resistance Directory system drawings for “F” and “T” ratings and uses

UV-resistant for safe use on indoor and outdoor projects

Low profile design gets into tight spots

Bar & Chain Oil

BestAir® 20 x 25 x 4 in. Air Cleaning Furnace Filter, MERV 8, Removes Allergens & Contaminants, For Honeywell Models Size:20" x 25" x 4" Screw-thread battery cap with O-ringIndoor air quality is commonly affected by particles such as dust, pet dander, and viruses. BestAir is dedicated to providing a clean and comfortable indoor environment for everyone. We have a complete array of high quality humidification wicks, air cleaning filters, and many other accessories, which will ensure that your indoor air quality will be the BestAir that you and your family can breathe. We are the largest manufacturer of replacement filters