The Chicago STB-21-13-PR-AB Stops and Supplies. This pair of angle stop ball valves feature 1/2" NPT female threaded inlets, 3/8" O.D. female compression outlets, and 2" tee handles. They each come with a slip wall flange, and a 3/8" female compression by 1/2" female compression stainless steel flexible hose. These angle stops feature a bright, Chrome finish.