Clack Corporation introduces its new line of 4.5-inch diameter dual-gradient, melt-blown sediment filters, featuring two distinct filtration zones to maximize dirt-holding capacity and minimize change outs. Elements are constructed of FDA 21CFR177.1520-certified polypropylene resin; no binders, lubricants or anti-static agents are used in the manufacturing process. Tested andcertified under NSF/ANSI Standard 42 for material requirements only. Available in micron ratings of 25/01, 25/05 and 50/25, the filters will fit most standard Big Blue and Big Clear housings. Private labeling is available.www.clack.comballweg@clackcorp.com