Webstone has announced a full line of professional valves designed to eliminate leak paths as well as the need for additional tees, drains or unions. These forged brass valves include features like full-port quarter-turn drains, built-in tees, unions and various other configurations. They are ideal for hydronic/radiant installations and all types of plumbing systems. Many styles have patents pending, and they are available for immediate delivery. Webstone. Circle 16.