Particluate Class I
Used in conduit and cable trays for services
Replaceable air/water separator of rugged
National Hardware's Sheet Metal is designed for commercial and industrial applications
used for reinforcing 90 degree angles by application to the inside or outside of the corner
Filtrete Dust Reduction Pleated Furnace Filter, 3-Month, Green, 16 x 20 x 1-In. House-Hasson-Source Particluate Class I16" x 20" x 1", Green, Dust Reduction Filtrete Filter, 3 Month Filter, Electrostatically Charged Fibers Attract & Capture Large Airborne Allergens Like Pollen, Household Dust & Lint, Ideal For High Velocity Heating Cooling Systems, Performs Better Than Ordinary Fiberglass & Washable 1" Filters, For Residential Use Only, MPR Rating 600, Lasts Up To 3 Months.