It is safe to use on all fabrics. 1 CAP (50ml) = 1 DOSE. In case of very hard water, DOSE 1 & 2/3 (83ml). This product contains 15 doses. Simply add one dose of Calgon 4in1 gel to each wash into the detergent section of your washing machine with your laundry in addition to your usual laundry detergent for.
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