Milwaukee Hole Dozer 4 1 2 in. Bi Metal Hole Saw 1 pc. VEL N Brand Name: NaturalAire *Thickness: 1 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: 23 1 2 *Filters Dust Lint: Yes *Filters Mold Spores: Yes *Height: 23 1 2 *MERV MPR Rating: 8 *Actual Size: 23 3 8 x 23 3 8 x 3 4 *Air Filter Size: 23 Maximum Pressure: 3300 psi Number in Package: 1 pc UPC: 045242198580