A2Z Ozone Aqua-6 Multi-Purpose Ozone Generator, White Functional Timer with 15 settings for different applications; ozone generators are not intended to be used as medical devices Two 36" polyurethane tubes for ozonating One fine white diffuser stone and One coarse grey diffuser stone Lightweight and portable; Wall-Mountable ; Options for Voltage: 110V US . Ozone output: 600mg/ozone per hour; 11l x 8w x 3 h (inches) . Functional Timer with 15 settings for different applications Two 36" polyurethane tubes for ozonating One fine white diffuser stone and One coarse grey diffuser stone Lightweight and portable Wall-Mountable Options for Voltage: 110V US