For use with the Contour Colour Comparator.
Calibrated graduations in: 0, 0.25, 0.50, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0 mg/L as PO4.Contour Colour Comparator Accessory Disc.
Sku: CKD 1177
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