2Stage with 34 inch PushFit Braided Stainless Steel Hose Connectors and Ball Valve 1stStage premium 5micron polypropylene sediment filter FP15B captures dirt sand silt dust rust and scale particles and extends the life of CTO carbon block filter Using high quality coconut shell carbon and highly compact fabrication tech 2ndstage CTO filterFC15B knocks out cloudiness as well as bad tastes and odors removes over 90 of chlorine and is highly effective on organic compounds such as herbicides industrial solvents