The widest selection of sanitary filter media available. Tired of filters that are either too fine or not fine enough? With Flow Stream, you're sure to find the rightfilter for your job. With nine micron retention ratings from 25 to 765, Flow Stream provides you with more choices than ever before. A variety of sanitary, food grade woven and non-woven materials are offered. Our high quality filter tubes are available in sizes to fit Tri-Clover® and other popular in-line and side inlet filter housings. Dimensions shown are flat dimensions. Packaged and sold 50/box.