The system works great - the average flow rate is approximately 3.5 liters per minute. Easy to install but the information is misleading. To change the filters, you need to turn off the water. Trying to order the correct replacement filters is awful. Of the 4 places where you can get information and a description of the filter, each is different or may correspond to a different filter. This includes information about the actual filter, filter name, article numbers, pictures on Amazon or a user manual.
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