TOOBI is a pre-filter which is installed in the first water source coming into your home. It can help to remove particles above 50 um in size. The main body is made of lead-free brass which is safe and avoids secondary pollution. This sustainable filter is entirely corrosion-resistant and never needs to be changed. To clean the filter, simply rotate the knob on the bottom of the device to scrape away sediment stuck on it. The pattern on the main brass body is inspired by flowing water, representing water coming in and out refreshingly. TOOBI is an esthetically pleasing sustainable water filtration device for your home.