These vessels come complete with a manual backwashing head. With a simple turn of the handle your media will be backwashed with the water going to drain. Once the water is runing clean the handle can be turned back into "service" position. A great economical alternative for an automatic backwashing head. It is also a good option when power is not available.
All systems come complete with vessel, 1" manual valve, riser tube and bottom screen, DLFC, and Aquasorb activated carbon (12 x 40 mesh).
In/out :1" BSP
waste: 3/4" BSP