www.phcppros.com/articles/1028-chicago-faucets-designs-420-series-for-public-restroom-market

Chicago Faucets designs 420 Series for public restroom market
February 23, 2016
Chicago Faucets 420 Series single-lever lavatory faucets are designed for the public restroom and for durability. The 420 Series combines the strength of solid brass construction with the dependability of a time-tested ceramic mixing valve.
These ADA-compliant faucets mount to 4-inch fixed centers and have a 4-5/8-inch center-to-center chrome plated, cast brass spouts. The mixing valve features a built-in hot water limit stop to reduce costly hot water usage and help prevent scalding. 420 Series models are available with vandal-resistant non-aerating 0.35 gpm (1.3 L/min) outlets, a 0.5 (1.5 L/min) gpm spray, or a 1.5 gpm (5.7 L/min) non-aerating outlet.
Manufacturer Name: Chicago Faucets