Fiber Clear 7 lb Cellulose Pool Filter MediaFiber Clear 7 lb is an advanced cellulose based pool filter media designed to be a high performance alternative to traditional diatomaceous earth (D. E.). Made from refined, natural cellulose fibers, Fiber Clear delivers exceptional water clarity while being easier to handle, safer to use, and more environmentally responsible than D. E. This filter media is compatible with most standard D. E. pool filters and provides comparable micron level