AAF Flanders EZ Flow II 16 in. W X 20 in. H X 1 in. D Fiberglass 1 MERV Air Filter 12 pk (Pack of 12) Outdoor Christmas Lights Moulding Type: Colonial Casing Moulding Type: Colonial Casing The locking mechanism features anti shim technology Brand Name: Flanders *Thickness: 1 *Electrostatic: No *Filter Class: Class II *Filter Frame Material: Cardboard *Filter Material: Fiberglass *Filters Bacteria: No *Filters Pollen: No *Filters Smoke: No *Filters Viruses: No *High Efficiency: No *Metal Mesh Support: No *Number in Package: 1 *Pleated: No *Product Type: Air Filter *Sub Brand: EZ Flow II *Trimmable: No *Width: 16 *Filters Dust Lint: Yes *Filters Mold Spores: No *Height: 20 *MERV MPR Rating: 1 *Actual Size: 15 7 8 x 19 5 5 x 13 16 *Air Filter Size: 16x20x1 Sealing is accomplished with a resilient hot melt adhesive running the full perimeter of the frame on both upstream and downstream sides