100% brand new and high quality Features: The application of machines: The ozone generator is less than 30G/H. Effect: To improve the service life of the ozone concentration and machine. The filter function is to effectively remove dust and impurities and adsorption air excessive humidity, to ensure access to the ozone tube internal air dry and clean, thereby improving ozone tube to generate ozone concentrations and the service life. The product both ends can be freely disassembled and convenient maintenance. Recommended installation location: ozone equipment convenient observation and remove. Usage: This product will be one of the gas nozzle is communicated with an air pump, another gas nozzle on ozone tube inlet can be. Maintenance: the particle color is blue, after a period of time inside the particles after the absorption of moisture into the red. When the red translucent state, need to continue to use the internal particles take out after drying. Specification: Capacity: 230ml Shell material: Food grade plastic case + silica gel drying beads Dimensions: #1: 4.9x28cm/1.93x11.02inch, #2: 4.9x28cm/1.93x11.02inch, #3: 4.9x30cm/1.93x11.81inch, #4: 4.9x30cm/1.93x11.81inch Connector inner diameter: #1: 8mm, #2: 6mm, #3: 6.5mm, #4: 8.5mm Color: Blue Quantity: 1 Pc Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Air Dryer & Filter (without retail package)