• 13" x 19",
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• Poly-Flo polyester filters are a new break through in filters
• Designed to replace expensive hog hair filters
• Stiff blue filter
• Approximately 1/2" thickness
• Easily trimmed if desired but a tight fit is best
• Flame retardant - self extinguishing
• 100% polyester construction
• Cleans easily with water
• Cuts to full size opening with scissors eliminating air by-pass
• Rigid construction - needs no frame
• Low resistance to air flow saves money
• Fibers are unaffected by moisture
• Safe to handle - no fiberglass or sharp edges
• Bi-directional air flow
• 80 - 90% dust retention

Nortek Global Heating Parts 1046593