"Opti-Klens OK-2 Laboratory faucet mounted eye/face wash. This faucet fills the need for a full Eye/Face wash. For use on standard faucets, delivering over 3 gallons of water per minute with softened flow heads. Attaches to an existing sink faucet and mounts behind the faucet spout. It remains out of the way for everyday faucet use. However, when the time comes to use it as an eyewash, simply pull the diverter valve and the water is redirected upward. There is no plumbing required. The OPTI-KLENS unit installs easily onto any faucet, in any sink, or basin. This is the perfect economical solution for your emergency eye/facewash needs! Eliminator valve sold separately, (item # VALVE)allows water temperature control. Sold as Each"