Naturalaire Pleated Filter 19 1 2 " X 19 1 2 " X 1 " Synthetic Pleated Media Merv 8 tier discount 12 Drop: 3 1 4 inch in Drop: 3 1 4 inch in This Push Tite works well with various piping materials such as ABS California residents see Prop 65 WARNINGS Brand Name: NaturalAire *Thickness: 1 *Electrostatic: No *Filter Class: Class II *Filter Frame Material: Beverage Board *Filter Material: Synthetic *Filters Bacteria: Yes *Filters Pollen: Yes *Filters Smoke: No *Filters Viruses: Yes *High Efficiency: No *Metal Mesh Support: Yes *Number in Package: 1 *Pleated: Yes *Product Type: Air Filter *Sub Brand: *Trimmable: No *Width: 19 1 2 *Filters Dust Lint: Yes *Filters Mold Spores: Yes *Height: 19 1 2 *MERV MPR Rating: 8 *Actual Size: 19 3 8 x 19 3 8 x 3 4 *Air Filter Size: 20x20x1