The Lawn Genie 1” In-Line Valve can be installed below ground and housed in a plastic valve box which can be placed anywhere in the landscape. This rugged automatic valve has a smooth, flow-through design that provides optimum performance in potable and dirty water applications when used with a separate backflow prevention device. The Lawn Genie 1” in-line valve features the proven pressure-activated double-beaded diaphragm and external bleed to flush out dirt from the supply and lateral lines during new installations and repairs. Note: Check city or local codes to determine whether or not there are restrictions on the types of valves that can be used in your area. (.25-30 GPM flow rate; 1” female NPT inlet and outlet)