Product details:

Converts any faucet into an emergency eye wash station without interfering with normal faucet operation. Float off dust covers to protect outlet heads. Forged brass diverter valve. Body has 55/64-27 female thread. Furnished with 3 adaptors. Outlet heads are mounted 5 apart and are adjustable aerated outlet heads. Pull knob to activate eye wash. Water pressure holds eye wash in operation, leaving users hands free.