One way valve with 10mm tails which is fitted in the fuel line close to the fuel tank & will prevent a fuel feedback to tank when vehicle is left for a period of time.

This is a simple, affordable solution to aid cold starting & ensure the fuel levels are not drained from the float chamber & lines back to the tank.

It is also available with 6mm & 8mm tails, & suitable for all carburettor vehicles, low pressure diesel feed engines, but NOT fuel injection.

The total length with tails is 58mm & diameter of 22mm.