Baxter Sterile Water for Irrigation - steam-sterilized hypotonic irrigating solution. It comes in a virtually unbreakable bottle made of semi-rigid plastic. Tamper-proof bottle is protected by breakaway ring, and hermetically sealed outer closure covers the sterile inner screw-on cap. It is easy to pour the Baxter Sterile Water Irrigation out of the bottle's wide-mouth opening. 500 mL Bottle. 500 ml bottle