Max Pond Vol (Light Stock): 7500gls/34000 lts - Max Pond Vol (Standard Stock): 5000 gls/22500 lts - Max Koi Load 1% Feed Rate: 65 kg - Max Feed Rate Per Day: 1.50 lb/650 gm - Max Rec Flow Rate: 2500 gph - Size: 1.70cm High x 0.79cm Dia - The max Head of pump at least 2.0m more than working head or exceed 4.0m