1 - Johnson Pump Flow Master 5.0 GPH Variable Flow Demand Pump 12V Capacity: 19 l/min - 5 GPM Pressure Cut Off: 3.5 bar - 50 psi Fuze Size: 15 A Connection:3/8" NPT / hose 1/2"; 1/2" NPT / hose 3/4"; 1/2" NPT 3/4" hose 1/2 CTS Dimensions: 239 mm/9.4" long x 209 mm/8.22" wide x 113 mm/4.49" high