Praher Superstar 3000 Automatic Backwash Valve

Eliminates conventional back wash guesswork on filter systems. Available in 110 0r 220 volt, 50 or 60 cycle. Can be controlled through either a pressure switch or 7 day, 24 hour timer. Backwash and rinse times are adjustable. Manual override to allow backwashing in the event of a component failure. Will control a secondary source for backwashing and rinsing. Sizes 1.5" valve - max. flow 70 gpm. 2" valve - max flow 120 gpm. 3" valve - max flow 280 gpm..