Universal 5 Meters Ph Indicator, Litmus Test Strip Roll, Ph 1-14 Full Range Litmus Strips Tester For Water, Saliva

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Product description Material: paper Size: 2 * 2 * 0.6cm Quantity: 2 pieces Package content: 2 * PH = 0-14 test paper 1. pH UNIVERSAL TEST: pH test strips made of litmus paper, ideal for test measureme...