An all metal-bodied one-way fuel check valve for use in the fuel supply lines on most carbureted Fiat cars with mechanical fuel pumps.
If your car requires a lot of cranking after sitting to start, fuel drain back to the tank is often the culprit.
Use this in-line between the fuel tank and the carburetor to prevent siphoning.
All metal construction, with barb fittings that accept 7mm / 8mm fuel hose.
New and Unused.