F56D1 4″ Runxin, manual backwash valve with 2″ Ports

The Runxing F56D1 Manual Backwash Header Valve can be used with several different Filtration Medias such as Activated Carbon, Silica Sand, Birm, Iron Removal Resin, Crystal Sand or AFM Glass Media. The Manual Backwash valve Head allows you to manually backwash sediment, dirt, rust, and other large particles from the filter media.