Reduce Nitrates in Your Water This replacement nitrate filter element is designed to reduce nitrates in municipal water supplies and works with the Doulton DUO countertop system, and DUO and TRIO under-counter systems. Use with a Doulton ceramic filter element for clean, filtered drinking water. For use within a multi-filtration system. Not suitable for single chamber system. Mount 1/4" BSP. Filter element size: About 10"H x 1.9"W. Origin: UK.
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