Turn One Steering - GM Flow Restrictor for P PumpHose Connection: GM O ring Pump Application: Saginaw P Pump or N Pump Material: Black Anodized Aluminum This flow restrictor is for Saginaw P style steering pumps commonly called canned ham pumps. This is also compatible with N style pumps, which are P pump that use a remote reservoir. Turn One restrictor fittings are precision CNC machined in the USA at our factory in Michigan. Our flow restrictors come standard with a 1. 3, 2. 0, 2. 5 and 3. 0 gpm