Many pool professionals consider D.E. filtration to be the finest, because it is capable of removing smaller particles than either sand or cartridge.
For both new pool and aftermarket installations ProGrid vertical grid D.E. filters provide superior water clarity, efficient flow and large cleaning capacity for an unparalleled filtration value.
For in-ground pools of all types and sizes, Perflex® DE filters and filter systems provide superior water clarity, extended filter cleaning cycles, and require no backwashing.