Chrome-plated, solid brass unit easily installs on any existing sink or basin faucet as a permanent eye wash fountain, yet does not interfere with normal faucet functioning. Water supply in an emergency is limitless, unlike portable models. In operation, unit frees both hands to hold eyes open to the flow of water. No plumbing is required. Supplied with two of the most common adapters. Other adapters are available from the manufacturer at no additional cost. Compliance: Meets ANSI Standard #Z359.1-1990 for an eye wash unit. Spray configuration on Opti-Klens II allows both eyes and face to be washed.