Durable Material: The scuba diving regulator is made of premium copper, which is durable and sturdy.Professional: External thread 9/16-18 to internal thread 3/8-24, the adapter allows the connection of two low pressure regulation hoses.Replacement: The scuba diving regulator is a great replacement part, so you can replace it directly.: The adapter is compact and , which is portable and convenient to carry.Low Pressure: The working pressure is 200psi, so the adapter is only used for low pressure.Colour:SilverMaterial:Chrome Plated CopperSize:About 25x17.3mmPackage Contents:1 x Diving adapterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.