Filter Cassette, Glass Fiber, 2 Filters, w/ Support Pad, 37mm, 4-Piece Clear Styrene Traditional Style, 50Pk

SKC Glass Fiber Depth Filters, made of binder-free borosilicate glass fiber, provide a tortuous path of openings that allow air to pass through but trap particles throughout the depth of the filter. Glass Fiber Depth Filters are autoclavable and provide high particle retention and wet strength. Supplied in bulk or preloaded cassettes Specified in EPA methods for environmental particulate matter gravimetric analysis