Max Pond Vol (Light Stock): 2400 gls/11000 lts - Max Pond Vol (Standard Stock): 1600 gls/7250 lts - Max Koi Load 1% Feed Rate: 50 lbs/23 kg - Max Feed Rate Per Day: 0.5 lb/230 gm - Max Rec Flow Rate: 800 gph/3600 lph - Size: 1.08cm High x 0.41cm Dia - The max head of the pump should be at least 2m more than working head.