High Quality The inflatable marine valve is made of high-quality, high-density plastic, which is strong, corrosion-resistant and durable. Please allow a slight deviation for measurement. It is not a general-purpose type. (Please check your required size.If you are not sure about the size, please contact us to make a purchase.) One-way InflationThis valve is a one-way inflation valve, suitable for rapid inflation. Anti-leakage DesignThe marine valve has a perfect design, and the valve cover ensures air leakage. Fine DesignThe fine design of durable air valve with a valve cap ensures anti-leak inflation.Please check size to make sure whether your valve bung fit this plug before purchase.Please check the picture. Good ComponentInflatable Boat Valve comes in pair, the Inflatable Tube is a good replacement accessory for your inflatable boat.After inflation of your inflatable product by the valve, DO NOT use the product immediately! Leave your inflatable product inflated for 2 hours at least, to test if there is any tiny air leakage. especially for inflatable boats. Widely ApplicationOur inflatable boat air valve replacement spiral air plugs fits most inflatable boat, raft, rubber dinghy, etc.But not suit for netted ship . 2-in-1 inflation valve Boston screw valve Ships suitable for intex/partial ships of Jilong jilong (non-clamped) / Partial beds of Decathlon / beds of BESTWAY / beds of TATAME, etc. Notice: Because there are many series under each brand, even if the same model The valves are also different, please refer to whether the original valve is consistent or measure the size before placing an order. (The outer diameter of the screw opening of the cover is 2.2 cm) Weight: 38g/set