Ball Valve For 5/8 UPC: 748172545522 Manufacture: Two Little Fishies Barbed Aquatic Ball Valves for regulating water flow through standard hose used for devices such as canister filters, pump return lines, protein skimmers, calcium reactors, etc. Hose slips onto barbed end for secure fit in 1/2 inch, 5/8 inch, 3/4 inch and 1 inch I.D. tubing. 5/8 in