Pad Refills (Pack of 6 Pads) - 18 1/2" x 18 1/2" x 1" Quantity:Default 28X Increased Efficiency

28X Increased Efficiency

The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

Either way

We look forward to delivering our American-made

A higher MERV rating means that the air filter that you are about to purchase possesses a higher amount impurity filtration ability than your ordinary filter

Pad Refills (Pack of 6 Pads) - 18 1/2" x 18 1/2" x 1" Quantity:Default 28X Increased EfficiencyPACK of 6 pads for Pad and Frame Air Filters Filtering inserts are anti microbial and are more efficient in capturing particles, such as dust, ragweed, pollen, etc., from the air stream, than standard fiberglass filters purchased at retail outlets. Filtering inserts are shipped in an easily stored packet.