Alloy one-way non-return valve for petrol or diesel (will also operate with water and other fluids eg kerosene, paraffin, vegetable oil, hydraulic fluid). Also suits air (at atmospheric pressure or up to 20PSI - won't suit high pressure tyre airlines)
Suitable for many many applications (including vehicle fuel lines) & pumps which are not self-priming.
58mm by 22mm, 6mm or 8mm or 10mm or 12mm or 14mm barbed tails.

UK seller with UK stock so will arrive with you soon, without risk of import delays or customs duties or inferior products