Booklet of 80 Sunflower Paper Strips pH 1 to 14
The pH range is 1-14 80 litmus paper strips per booklet Use to test soil acidity Use to test the neutrality of water/soap
Booklet of 80 Sunflower Paper Strips pH 1 to 14
The pH range is 1-14 80 litmus paper strips per booklet Use to test soil acidity Use to test the neutrality of water/soap
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