Perflex filters are performance matched with the Power-Flo Matrix pump series to ensure a system that maximizes its filtration ability. These advanced filtration systems are designed to operate with less resistance than conventional units, thus producing more filtered water with less pump horsepower. The Perflex filter features: pump-to-filter union connection provides simple installation and winterization, is corrosion-proof, has an ABS modular platform base accepts optional chlorine feeder and optional microprocessor pump timer.