Classified by Underwriters Laboratory Inc. to ASNI Z358.1. Lead free design. Wetted surface contains less than .25% lead. Low-cost eyewash mounts easily to both standard and gooseneck faucets. For eyewash use, leave cold water supply on at all times. To operate unit pull diverter pin toward user. For faucet use, water flow is activated by the use of the shutoff pin. Push the pin to the opposite side for water flow.