EyeSafe™ Faucet Mounted Eye Washes ORS NASCO tab lock headband Ratchet headband is strip tab lock headband Ratchet headband is strip proof and provides easy adjustment SwingStrap™ combines the benefits of both the ratchet and the 360° padded sweatband with the added ability to convert from forward to reverse wearing position without having to remove and reinstall the suspension Bacteriostatic additive refill Eyewash unit should be inspected regularly and water in unit should be changed at least once every six months One 8 oz bottle will preserve up to 20 gallons of potable water for up to six months 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 Pull knob to activate eye wash