The UltraLife Wall Mount Reverse Osmosis Unit produces excellent water quality for your aquarium. While water runs through this 3-stage filtration system containing 1 micron pre-filter, 5 micron solid carbon blocks and thin film composite membranes it is removing the bad bacteria, pollutants and toxins from your aquarium water. This heavy-duty RO Unit features a secure Wall Mount bracket and is created larger than the portable RO Units for durability and optimal performance. The Wall Mount Reverse Osmosis Unit is the first step to a successful aquarium environment, as it provides all living organisms with a toxin-free atmosphere for proper development and sustainability.