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Hydrion pH Paper is a short-range test paper that shows a distinct color change for each half of pH. Measures pH from 4.5 - 7.5. 15' rolls in dispenser with color chart printed on the side.
Please note that this short-range paper is designed for saliva and urine pH testing. Any solution such as tap water, rain water or aquarium water with < .1% of dissolved solid is called a low buffered or unbuffered solution. If you try to use this pH paper on an unbuffered solution, the reading could be off as much as 2 whole pH units.
Buy in Bulk and Save!
1 for $8.00
5 for $35.00 ($7.00 each)
10 for $55.00 ($5.50 each)
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