4 Pcs Boston Valve, One-way Universal Fit Air Valve for Rubber Dinghy Raft Kayak Pool Boat Airbeds, Black

Material: The Boston inflatable valve made of high quality ABS material, strong and durable, corrosion resistant, not easy to leak air.

Size: The underside diameter of Threaded part is 22mm (out)/ 20mm(inner). The specific size of Boston valve can be seen in the second picture. Please check size to make sure whether your valve bung fit this plug before purchase.

Application: Great for standard Boston valves replacement kit and most of Rubber Dinghy Raft Kayak Pool Boat Airbeds, etc.

The Valve is a one-way inflation valve, good for quick inflation. The air valve cap design is sealed ensures anti-leak inflation.