I purchased this through crowdfunding, but it took about three months to arrive. In the meantime, my water dispenser broke, so I bought another one, and I no longer need this product. It looks very convenient, but it's unused and unopened. The general retail price is 21,679 yen (tax included) for the main unit, but the crowdfunding purchase price was 14,735 yen. For more details, please refer to the following websites: https://elfinfountain.com/ja-jp/pages/jp-elfin-fountain-d1-pro https://camp-fire.jp/projects/847033/view#:~:text=%E3%80%90%E8%B6%85%E6%97%A9%E5%89%B2%E4%BE%A1%E6%A0%BC%E3%80%9134,%E7%A8%8E%E8%BE%BC%E3%81%BF%E3%81%AE%E4%BE%A1%E6%A0%BC%E3%81%A8%E3%81%AA%E3%82%8A%E3%81%BE%E3%81%99%E3%80%82