Media Fiberglass Pad Pbwl 5.5x15.5x1 Purolator Media Fiberglass Pad Pbwl 5.5X15.5X1 Bulk Fiberglass media is good for light industrial, commercial and residential applications. The media is for standard disposable filters, hammock rolls and frame and pad applications. Made from 100% continuous filaments of spun glass, bonded with a thermosetting resin to assure deep penetration and high dirt-holding capacity. 15.50 L. 5.00 W. 1.00 H.