Wire Terminals & Connectors features: This is a steam tube adapter, made of aluminum alloy material, which is sturdy and has a long service life. This fitting has a 1-1/2" barb on both sides, can be used to couple or repair your radiator hose, brake booster hose, vacuum line, or any other hoses together. Reasonable design and fine craftsmanshlp make it bring you a good experience. Features Color:Silver Material:Aluminum alloy Size: About6.00X4.00X4.00cm/2.36X1.57X1.57inch It is made of well-chosen durable material and has a long service life It has a simple structure design, simple operation method, and time-saving and labor-saving The structure of this radiator hose barb coupler is strong, the surface is smooth, and it can be used safely Commonly used to couple or repair your radiator hose, brake booster hose and vacuum line With a hose stop flange to keep the coupler centered in the splice connection.