Turbosmart Fuel pressure regulator AN12/AN10 Pro Black The Turbosmart FPR Pro 12 Series provides market-leading fuel control and response via true 1:1 ratio and superior flow and bypass capacity for vehicles with -12 / 12AN fuel feed and -10 / 10AN return fittings. Utilising our Stainless Steel Valve Seat & Milspec Diaphragm, the FPR12 Pro Series is suitable for all Fuel types, including Race Fuel and aggressive leaded fuels. Characteristics 12AN Inlet and Return 4 x 10AN Fuel Distribution Stainless Steel Valve Seat Suitable for all fuel types 1:1 Class Leading Ratio & Response Adjustable Pressure 1/8 NPT Pressure Sensor Port Unique Locking Collar Design Milspec Diaphragm 50-100psi (Mechanical Pump) 50-130psi (Electric Pump)