File:Free chlorine chart.jpg
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Free_chlorine_chart.jpg (790 × 324 pixels, file size: 186 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 22:07, 22 May 2012 | 790 × 324 (186 KB) | Winona (talk | contribs) |
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