An economical solution to reduce fine sediment including rust, sand and scale particles. The material in the WP-BB Cartridges is a fibrous polypropylene media wound in a precise pattern around a polypropylene core, providing greater surface area to maintain high flow rates. Suitable for a wide range of sediment applications including municipal and well water, and are chemical resistant so they can be used with many industrial fluids. String-wound design reduces fine sediment from a variety of fluids Economically priced Lengths: 10", 20" Also available in 0.5*, 1, 5, 10 & 25 micron ratings