Improved Surface Treatment: uses a glaze sealing process to give the faucet an extra protective layer, which ensures that the surface is smooth, doesn't fade, and prevents oxidation. In addition, the protective layer can effectively prevent fingerprints. Dual Valves & Articulating Arms: This pot filler faucet features the convenience of two valve controls and an articulated arm that has a maximum reach of 17 inches. Plus, it folds out of the way when not in use, which saves kitchen space. The 360°rotating design makes it easy to fill large cooking vessels quickly without having to walk from the sink to the stove. (Just remember to turn off both valves after use.) Superior Aerator: The superior aerator creates a perfect aerated stream that's quiet and non-splashing. Most importantly, it saves water. Standard 1/2 NPT Threads: The connection threads have been updated to 1/2 NPT tapered threads (standard U.S. size). The faucet has a single-hole wall-mounted installation and a single tap (not a mixer tap).