Photo 1 of PATIKIL PH Test Strips 5.5-9.0, 2 Pack 160 Indicator Papers Litmus Tester for Water Food Soil Alkaline Acid Testing

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Photo 1 of PATIKIL PH Test Strips 5.5-9.0, 2 Pack 160 Indicator Papers Litmus Tester for Water Food Soil Alkaline Acid TestingPhoto 2 of PATIKIL PH Test Strips 5.5-9.0, 2 Pack 160 Indicator Papers Litmus Tester for Water Food Soil Alkaline Acid Testing