Intelligent refilling: Free up your hands to automatically refill cleaning fluid. No need to use your hands. You can intelligently add cleaning fluid according to the mopping mode every time. Ultra-large capacity: Easily install the ultra-large capacity to long-lasting cleaning power. With liquid shortage detection, you know when you need to add cleaning fluid. Made of high quality material, more . elicate and exquisite, highly match the equipment. Easy to install and remove, no need to spend extra energy and time. [Product Name] for G20S/S8maxv Ultra Automatically add a cleaning solution module [Adaptation model]Applicable for G20S/S8MaxV Ultra Colour:Transparent gray Material:ABS Package Contents: 1 x Cleaning Fluid Module Only the above package content, other products are not included. Note: Light reflection 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.