The Little Giant 6 Series submersible epoxy-coated cast iron sump pumps are equipped with a 1/3 hp 115-volt, shaded pole, oil-filled motor with thermal overload protection and is designed for continuous duty. These pumps deliver up to 2760 gph (46 gpm) at 5' lift, have a shut-off of 18' and a maximum psi of 7.0. These pumps are equipped with a 1-1/2 FNPT discharge. The maximum fluid temperature is 140 °F. The 6-Series is cCSAus listed in the USA and Canada.The Little Giant 506158 6-CIA automatic sump pump with integral switch is designed specifically for sump systems. The pressure activated integral switch (not adjustable) activates when the water level is between 7" and 10" and shuts off when the water level drops to between 1" and 4". The switch cannot be overridden for manual operation and is therefore not recommended for emergency water removal or general water transfer. This pump comes with a 10' cord. SWITCH OPTION TIPS:- Integral diaphragm switches are designed for sump systems only. Minimum basin diameter required is 10".- Mid- level integral diaphragm switches cycle more frequently. They are designed for shallow under sink or laundry tub systems. Minimum basin diameter required is 10".- Piggyback float switches are designed for sump systems, emergency water removal or water transfer applications. They can be switched to manual mode easily by unplugging the pump from the switch and plugging it directly into the outlet. Float switches require more room to activate the switch, the minimum basin diameter is 18".- Piggyback diaphragm switches are designed for sump systems, emergency water removal or water transfer applications; They can be switched to manual mode easily by unplugging the pump from the switch and plugging it directly into the outlet. The minimum basin diameter is 10". From the Manufacturer Little Giant 6-CIA has a diaphragm pressure switch which engages the pump at 7-Inch to 10-Inch water level and turns it off at 1-Inch to 4-Inch. It is one of the most popular sump pumps and works extremely well for moving large volumes of water. It has 1/3 HP shaded pole motor with overload protection and is designed for continuous duty. Typical applications include commercial, industrial, and home uses where liquid must be transferred or recirculated.