Check the listing for details. Netafim 323 Pressure Reducing Valve. Condition: New. Listed at 394.57 USD. Durable nylon pressure reducing valve from Netafim provides superior hydraulic performance in surface or subsurface applications. This model is a 2" valve body with 3" FPT (female pipe thread) inlet/outlet connections for easy inline installation. Nylon valve body and bonnet with glass reinforced polyamide (GRP) seat resist corrosion from chemicals and fertilizers used in your application. Spring Options:Yellow for 7 -30 PSIGreen for 14-65 PSIManual Valve Operation with a 3-Way Selector Closed (C): Upstream pressure or pressure from an external source is applied to the control chamber. Initiated by the spring, the diaphragm is pressed down to close the valve drip-tight.Open (O): Relieving the water or air pressure to the atmosphere from the control chamber causes the valve to open.Automatic (A): The automatic port of the 3-Way selector is connected to a solenoid, hydraulic relay or pilot which controls the valve. The common port of the 3-Way selector connects the control chamber to either A, O, or C, depending on the direction the selector is pointed.Manufacturer Installation Tip for Threaded Valves: Use a few layers of Teflon tape or Teflon sealer compound on the adapter and tighten by hand. Use a wrench to tighten the adapter another half revolution.