AAF Flanders EZ Flow IIEZ Flow 20 in. W x 25 in. H x 1 in. D Spun Fiberglass 1 MERV Air Filter (Pack of 12) VEL C Henry wet patch is especially Henry wet patch is especially of great help at moving joints where its flexibility and elasticity make it superior to standard plastic cement and steam or gravity Brand Name: Flanders *Thickness: 1 *Electrostatic: No *Filter Class: Class II *Filter Frame Material: Chipboard *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: 20 *Filters Dust Lint: Yes *Filters Mold Spores: No *Height: 25 *MERV MPR Rating: 1 *Actual Size: 19 5 8 x 24 5 8 x 13 16 *Air Filter Size: 20x25x1 Sealing is accomplished with a resilient hot melt adhesive running the full perimeter of the frame on both upstream and downstream sides