Water Pump Pressure SwitchThe product is shipped based on the color or size of the main image of the product page.20-40 PSI Well Water Pump Pressure Switch Adjustable Double Spring PoleWater Pump Pressure Switch Features:- Fitted phase:1 phase or 3 phase (15 or 230 volt / at 115 volt 1 phase it will handle 1.5 hp, at 230 volt 1 phase it will handle 2 hp, and at 230 volt 3 phase it will handle 3 hp.)- Preset on pressure: 20 psi/ the contacts close at this pressure to send power to the motor/ pump.- Preset off pressure: 40 psi/ the contacts open at this pressure to shut power off to the motor/ pump.- Adjustable pressure: Instructions are under the lid of the pressure switch on how to adjust pressure.- Min pressure: 20 psi Water Pump Pressure Switch Can be wired 1 phase or 3 phase.- 15 or 230 volt / at 115 volt 1 phase it will handle 1.5 hp, at 230 volt 1 phase it will handle 2 hp.Water Pump Pressure Switch Specification:Type :20-40 PSI Well Water Pump Pressure SwitchWater Pump Pressure Switch Material :Plastic shell & Cast IronWater Pump Pressure Switch Color :Grey shellWater Pump Pressure Switch Connection :female 1/4" NPTWater Pump Pressure Switch Max pressure :40 psiWater Pump Pressure Switch Min pressure :20 psiWater Pump Pressure Switch Net Weight :11.4oz(322g)