www.pmmag.com/articles/96380-chicago-faucets-commercial-kitchen-faucet-series

Chicago Faucets commercial kitchen faucet series
Chicago Faucets’ 640 Series kitchen sink faucets with integral supply stops feature brass construction and ceramic mixing valves.
April 22, 2014
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Chicago Faucets’ 640 Series kitchen sink faucets with integral supply stops feature brass construction and ceramic mixing valves. It includes hot- and cold-water supply stops built into the body, allowing maintenance personnel to service the cartridge or spout without turning off the main water supply. It features solid ECAST brass, chrome-plated bodies and 1/2” NPT female inlet arms adjustable for 6 1/4” to 9 3/4” centers. Models are available without spouts and users can drop in any interchangeable spout.