Showerhead: The Miracle Bubble Environment Created by Micro-Nano Bubbles With a unique patented turbulence control valve, water usage is reduced by up to 90%. Using the shower for 10 minutes a day saves approximately 18,250 liters (equivalent to 120 cups) of water per year! Calculated using Tokyo's water rates, this results in an annual savings of approximately 12,960 yen (for a family of four). If it can fit compactly without the box, the contents will be sent without the box. If you need the box, please be sure to consult before purchasing m(_ _)m Brand new, unused. Instant purchase welcome!