Koch 582-016-025 – 25x16x4 Fiberglass Air Filter Pad, MERV 4 (25 pcs)

Progressive Density: All Koch fiberglass media consists of continuous filaments of high quality spun glass. These fibers are formed into a graded density blanket to provide maximum depth loading throughout the roll or pad.

Special Adhesive: Each individual fiber is coated with a specially designed adhesive gel. This adhesive enhances the media's dust holding ability by creating a "wicking"; action not provided by competitive medias.

Color Coded Media: All Koch Fiberglass Media is tinted on the downstream side for easy installation into frames or blanket systems.

Specifications:

• 4" Media– White, upstream; Yellow/Gold, downstream.