Humidifier Water Bottle for Oxygen regulator HIGH FLOW Oxygen Bubbler Bottle for Oxygen Concentrator Oxygen generatorHeight: 16cm / 6.3 inchBottle mouth diameter: 7cm / 2.76 inchTube Length: 29cm / 11.4 inchColour:blackMaterial:plasticPackage Contents:2 x humidification bottle2 x hoseOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.