Description: This coupling has barbed connections on both ends for connecting three hoses. The barbed stems create a tight seal on flexible and semi-rigid hose when used with a hose clamp or crimp sleeve or ferrule (not included). This fitting is made of copper for corrosion resistance, ductility at high temperatures, and low magnetic permeability. Hose fittings connect, control, change the direction of, and terminate the flow in piping and hose systems. Commonly used to connect lines for air, water, fuel, oil and inert gases in a quick and simple way Specification: Product Name: Barb Hose Fitting with Clamps Material: Copper Total Size: 39x10mm / 1.54"x0.39"(L*D) Clamp Size: 6-12mm Color: Gold Tone Package Included:1 Set Barb Hose Fitting with ClampsNote:Before ordering, please confirm the right size