Check the listing for details. Water Bottle Humidifier for Oxygen Concentrator (1). Color: White, Condition: New. Listed at 8.65 USD. Water Bottle Humidifier for Oxygen Concentrator (1) Description Water Bottle Humidifier for Oxygen Concentrator The translucent jar is permanently etched with maximum/minimum water level markings that are easy to read and will not wash, wear or rub off. Ideal for use with all oxygen sources including concentrators, liquid ABOUT Water Bottle Humidifier for Oxygen ConcentratorMaximum/minimum water level markingsPermanently etchedCompatible with all oxygen sources SPECIFICATIONS The translucent jar is permanently etched with maximum/minimum water level markings that are easy to read and will not wash, wear or rub off. Ideal for use with all oxygen sources including concentrators, liquid RETURN If there is something wrong with your order Please contact us before return. You may return any product in its original box and condition within 14 days of receipt of your order CONTACT US If you have any queries, please contact us via ebay. We usually respond within 24 hours on weekdays. Contact seller SHIPPING Free Shipping Service is ONLY available to U.S. Continental 48 States with a valid street address or PO Box. If you would like to ship to Puerto Rico, Alaska, Hawaii or outside the U.S. please contact us for shipping charges. All sales are final. If there is something wrong with your order please contact us. CONTACT Please contact me with any issues before leaving any type of feedback. I will communicate with you to resolve any problem you may have. We will leave feedback after item is received and would appreciate feedback as well. I value my feedback rating. 99.2% Positive feedback