Pure Blue (PB) Reverse Osmosis Replacement Filters
These are the pre- and post-filter replacement filters for the Pure Blue (PB) reverse osmosis system by Dupure. These filters should be replaced every year. Both filters must be changed at the same time.
At this time, Dupure is NOT offering the middle membrane filter online. If you need to order the middle filter please email us or call in at 877-534-5837.