... psi @ 1 gpm(0. 26 bar @3.8 L/min)>20,000 gallon @ 1 gpm>75,700 liters ... @ 3.8 L/minCTO-20"2-7/8" X20"(73mmX508mm)53.7 ... psi @ 2 gpm(0.21 bar @7.6 L/min)>45,000 gallon @ 1 gpm>170,300liters@ ... 53.7 psi @ 4 gpm(0.59 bar @15.1 L/min)>150,000 gallon @ 4 gpm>567,800 ... liters @ 15.1 L/min 5.Genaeral installation/Operation/Maintenance Requirement Note Flow ...