Aquatic Life Compatible Reverse Osmosis Deionization (RODI) 10" Color Indicating

Aquatic Life Compatible Reverse Osmosis Deionization (RODI) 10" Color Indicating Mixed Bed DI Resin Cartridge 3-Pack. Filled with Resintech MBD-30-NG Nuclear Grade Mixed Bed ResinTHREE Color Changing Mixed Bed DI Cartridges filled with MBD-30-NG Nuclear Grade Resin.Standard 10" cartridge housing - D