Deionizing (DI) Mixed Bed Replacement Inline Filter- Refillable Aquarium RO/DI
White Inline water filter 2 x 10" DeIonization (DI) 1/4"FPT. For Aquarium Usage. Mixed Bed DI Resin- Highest Quality Resin For Ultra Pure Water. A whole house filter, softener, and a reverse osmosis system.