The Glasfloss PTA Series disposable panel filter has set the standard for quality and durability. This rigidly constructed air filter maintains its integrity where others fall short. Always the highest quality, Glasfloss disposable panel filters have metal grids on both the air entry and the air leaving sides.

The standard size filter element is constructed of a single piece of heavy-duty, one piece craftboard frame. The metal grid shall be thermally bonded internally to the frame. The metal grid is 28 gauge and provides 82% open area. All corners are closed and sealed. The filter media shall be constructed in a progressively dense fashion from air-entering to air-leaving side. The PolyStrand® filter media is made from fibers completely coated with a polyester coating. Glasfloss disposable panel filters shall be rated to withstand temperatures up to 180°F. All filters are classified under UL 900.