Pad Refills (Pack of 6 Pads) - 20 1/4" x 20 1/4" x 2" Quantity:Default A higher MERV rating means

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

In general

No screws need

It is designed to inhibit growth of bacteria

Magnetic mount holds lamp in place

Pad Refills (Pack of 6 Pads) - 20 1/4" x 20 1/4" x 2" Quantity:Default A higher MERV rating meansPACK 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.