Gator Grit 100 Grit 4-3/8 In. x 11 In. Precut Drywall Sanding Screen (25-Pack) Axes Reduces radon gas penetration through

Reduces radon gas penetration through concrete block walls

and dirt from all painted

3 month filter is 90% effective at capturing large allergens like mold spores & pet dander

SmartKey function with revolutionary cylinder design eliminates traditional pins and springs

It expands and contracts with the roof's movement to resist damage

Gator Grit 100 Grit 4-3/8 In. x 11 In. Precut Drywall Sanding Screen (25-Pack) Axes Reduces radon gas penetration throughOpen mesh waterproof silicon carbide for sanding and finishing of drywall joint compound. Non clogging abrasive screen has grit on both sides for longer life. Can be used on wood, metal, plastic, and auto body filler. 4 3 8' x 11' sheets. 25 sheets per box.