This kit includes everything needed to add vacuum to our standard series products. Directly thread in any vacuum cup with a G1/2 fitting or use one of the included adaptors for G3/8 or G1/4 fittings. The supply hose routes back through the knuckles, links, and bases for a clean and reliable solution with no exposed hoses. We also include a special adaptor for mounting decentralized vacuum grippers that have an M8 stud. The side port allows the pressure supply to run internally and the only exposed hose is at the gripper.