Tube O.D.: 1/4"
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Mixed bed resin used for Crystal Pro or Crystal Plus DI unit.
Mixed bed "Power" resin used for Crystal Pro or Crystal Plus DI unit.
Double longer life span then the normal resin.
Crystal Plus is tap water filter containing mixed-bed resin.
The use of Crystal Plus removes 99.9% of contaminants including heavy metals, phosphates, silicates and nitrates. This is important for preventing growth of unwanted algae in both fresh and marine aquarium.