Ro/di 150gpd Reverse Osmosis Dual Di Aquarium/reef System. Clear. Manual Flush
Six Stage RO/DI Aquarium System. Dual DI REFILLABLE Color Changing Media Cartridges. Reverse Osmosis systems, combined with A DI after filter, will give you the lowest TDS reading for your aquarium water supply. DI Resin is necessary to reduce Total Dissolved Solids (TDS) to zero and is the last stage of an RO/DI unit. It is unnecessary to use the expensive proprietary DI cartridges that other RO manufacturers sell. A constant supply of high purity water can be obtained by using two cartridges in series and allowing the first cartridge to completely depleted. During this operation, the...