Pleat Air Prefilter with Cardboard Frame

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Pleat Air Prefilter with Cardboard Frame

Pleat Air Prefilter with Cardboard Frame

The Pleat Prefilter with Cardboard Frame
*  Thickness: 4inch(95mm ), 2inch (45mm ),linch(22mm);
*  Choose High-lofted cotton and synthetic media blend Choose High wet-strength beverage board frame,
*  Filtration efficiency (Test by weighing dust);
*  Efficiency Rate: G1-G4.