Koch Filter™ Disposable Fiberglass Filter 20" W X 20" H X 1" D - Pkg Qty 12

Koch Filter™ Disposable Fiberglass Filter 20" W X 20" H X 1" D Commercial / Industrial Fiberglass Disposable Filters for Light-to-Medium Duty Applications. Durable construction for all types of industrial and commercial applications Progressive density glass or poly filter media Heavy-duty frame and corners for added strength and durability Environmentally friendly Special sizes available Easy to install Fiberglass Media - Standard C&I Disposables are constructed with high grade progressively dense glass fibers. The air entry side is composed of open coarse fibers, while the air exit side is made up of tighter fibers. This dual density media configuration allows for proper depth loading and full utilization of the filter media. Each fiber is coated with a non-migrating adhesive to enhance filter performance. Sturdy One-Piece Frame - The Koch C&I Disposable utilizes a one-piece moisture-resistant craft board frame for strength and ease of installation. The interlocking miter corner of the Koch C&I filter pr...