This Aerospace Components 4 Port Fuel Pressure Regulator is manufactured from billet aluminum. No Return Line Needed, Controls up to 30 PSI of Line Pressure, 10AN Inlet and (4) 6AN Outlets, #10 Unregulated Outlet Port, 1/8 NPT Pressure Port, Adjustable From 5-14 PSI, All Stainless Hardware, 100% Made in U.S.A.