Consists of a 0.75" diameter push in fitting that you push into the port on your pump or accumulator tank that will adapt to your 0.5" ID hose. Has barb end that you simply push your hose onto. Comes with "O-Ring" around port fitting to help prevent leaks. After pushing the port adapter in, you then push blue "hold in" clip on pump or tank to lock adapter in place. Brand new, made by Floject. Elbow "L" type is about 1.74" long. Sold in package of 2.G20526