RIO SUBMERSIBLE PUMPS are dependable and economical. These are the same pumps that are included in many hydroponic systems. 1/2" outlets. Gallons per hour ratings: RIO200, 163gph -RIO600, 250gph
-RIO2100, 692gph.
PRO PUMPS are the only pumps exclusively engineered for hydroponic use. These powerful pumps are the most energy efficient available, consuming from 33-66% less power than any other comparable unit on the market today. Includes an upgraded foam filter. Gallons per hour ratings: PRO150, 150gph -PRO 275, 275gph -PRO 500, 500gph.