Set of 2 brass hose fittings - Straight fitting - 12 mm to 10 mm - For water, gas, oil, boat, air hose

Made of brass for corrosion resistance, high-temperature ductility, and low magnetic permeability.
Allows you to connect two hoses of different diameters with a single turn.
Used to connect air, water, fuel, oil, and inert gas lines quickly and easily.
Barbed shanks create a tight seal on flexible and semi-rigid hose when used with a hose clamp, crimp sleeve, or ferrule (not included).
This fitting has barbed ends for connecting two hoses.