Flanders NaturalAire Standard Air Filter, MERV 8, 24" x 24" x 1" Tub & Shower Trim Kit Bolt size: 5/16 Inch x

Bolt size: 5/16 Inch x 2-1/2 Inch

Potassium soap: 22

Certified Lead Free

Up to 12 months protection

Super absorbent and safe

Flanders NaturalAire Standard Air Filter, MERV 8, 24" x 24" x 1" Tub & Shower Trim Kit Bolt size: 5/16 Inch xPleated Air Filter, MERV 8, 1 Inch 6x times more effective than traditional fiberglass air filters at capturing dust, pollen, and other particles from your indoor air MERV 8 rating: Reduces up to 75% of large airborne particles including: Dust and Lint, Dust Mite Debris, Pollen, Pet Dander, Mold Spores, Bacteria and Virus Carriers Efficient airborne particle removal for a cleaner indoor environment Robust construction makes the filter easy to install