Chrome-plated, solid brass eyewash unit easily installs on any existing sink or basin faucet as a permanent eye wash fountain with unlimited water supply in an emergency, unlike portable models. In operation, unit mounts behind the spout, where it remains out of the way for every day use. In an emergency, it frees both hands to hold eyes open to the flow of water. Delivering more than twice the required water flow, it does so at a reasonable height. It will function properly with as little as 15 lbs. of water pressure. It is restricted to reduce high water pressure to a velocity low enough not to be injurious to the user. No plumbing required. Two of the most common adapters are packed with the unit.