Pentek DGD-7525 # 155355 Big Blue 25 Micron Replacement Sediment Water Filter Cartridge Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. Big Blue 25 Micron Dual Gradient Polypropylene Sediment Water Filter. 10" long X 4 1/2" diameter. 8 per case, sold individually. Ametek # 155355 DGD Series is manufactured from 100% pure polypropylene fibers and are sized for use in our Big Blue ® filter housings. They are designed for purity and will not impart taste, odor or color to the liquid being filtered. Order a case of 8 and save even more.

Pentek WP.5BB97P (355212-43) Big Blue String Wound Sediment Replacement Water Filter Cartridge Compatible With Culligan, Ametek, US Filter, Plymouth, Kleen Plus, American Plumber, Bruner & Many Other Brands. WP.5BB97P Big Blue Half Micron Polypropylene String Wound Sediment Replacement Water Filter. 10" long X 4 1/2" diameter. 8 per case, sold individually. #WP.5BB97P WP Series cartridges are manufactured from a durable polypropylene cord that is wound around a rigid polypropylene core. They are an economical solution to reduce fine sediment, including sand, silt, rust and scale particles. WP cartridges are wound in a precise pattern around the core providing a greater filtering surface area. The result is a higher dirt loading capacity and greater efficiency than standard wound cartridges like the CW. Order a case and save even more.