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pH color indicator test strips on a white background

Stock Photo:
Image ID: 27909610
Small
491x500 6.8"x6.9" (72dpi) 123 KB
Med
982x1000 3.3"x3.3" (300dpi) 413 KB
Large
2803x2855 9.3"x9.5" (300dpi) 1.6 MB
Super
5606x5710 18.7"x19.0" (300dpi) approx.4.4 MB
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