Application: eyewash for mounting on counter next to sink. spray heads swivel 90 degrees from storage to operational position. water flow is activated by flag handle;Spray head assembly: two gs-plus spray heads. each head has a “flip top” dust cover, internal flow control and filter to remove impurities from the water flow;Valve: 1/2" ips chrome plated brass stay-open ball valve. valve is us-made with chrome plated brass ball and ptfe seals;Mounting: unit is mounted on right side of sink. furnished with locknut and washer for securing unit to countertop;Construction: polished chrome plated brass;Supply: 1/2" npt male inlet;Sign: ansi-compliant identification sign;Quality assurance: unit is completely assembled and water tested prior to shipment