EcoCart Replacement DI Resin Cartridge Filled w/DI Resin
This is a replacement DI cartridge filled with charged DI resin for the HydroSphere EcoCart multi-stage system.
Size: 3 x 20 inches
You can also purchase pre-measured, loose DI resin or a cubic foot of DI resin and refill the canister yourself. The replacement carbon/sediment filter and RO membrane are also available. See the related items below.