This fitting has a 3/4" barb on both sides of the fitting with a hose stop flange to keep the coupler centered in the splice connection. 3/4" to 3/4" O.D. Hose Barb Coupler. Type: Hose Barb. Commonly uséd to couple or repair your radiator hose, brake booster hose, vacuum line, or any other hoses together.
