FUNCTION: With potable water supply protected by the integral atmospheric vacuum breaker, used to supply hot, cold or tempered water to can washing drains, flushing rim drains or other devices requiring a water supply. All operating parts are protected from vandalism by means of the hinged door which is provided with a cylinder lock. Both the hot and cold water supplies are provided with integral screw driver stops allowing maintenance of the control valves without shutting down the main water supply. Fig. 3380 is furnished with plaster grounds and is usually flush mounted in plaster walls. Fig. 3385 is surface mounted and is usually used in brick or masonry construction.