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Residential Water Softening, Filtration, and Purification Solutions

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Excalibur Tannin Organic Trap CRA

Excalibur organic trap cra resin

Widely utilized anion ion-exchange resin for the removal of tannins, colour, and dissolved organic carbon consisting of a strongly basic, type 1 anion built on a macroporous, cross-linked acrylic polymer matrix having quaternary ammonium functionality.

The porous structure allows more efficient removal of large organic molecules using both adsorption and ion exchange properties to capture those contaminants.

The acrylic polymer matrix allows for excellent adsorption and desorption of natural organics matter from surface water when regenerated with sodium chloride (NaCl) solution.


Very low color, taste or odour

Aldex CRA meets the requirements for paragraph 173.25 of the Food Additive Regulation of the U.S. Food and Drug Administration. 

Long Life

Strong and durable beads insure long service life. 


Aldex Chemical has over 40 years of field usage by thousands of customers demonstrating the reliability of Aldex ion exchange resins and other water treatment media. 

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