New Prince Manufacturing Pressure Compensated Adjustable Flow Control valve RD-150-8. The item "Prince Hydraulic Compensated Flow Control RD-150-8 1/2 Port 0-8 GPM Adjustable" is in sale since Wednesday, April 16, 2014. This item is in the category "Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Valves & Manifolds\Other Valves & Manifolds". The seller is "hydraulicwarehouse_4" and is located in Plymouth, Michigan. This item can be shipped worldwide.