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Laboratory grade plastic pH strips in durable and easy to open flip-top vials. Easy-to-use — simply dip strip in solution to be tested and match to color chart immediately. Single colour match with full 0.5 in. (1.27cm) matching area for quick and accurate matches. Flip-top vial stays closed when dropped, but is easy to open with one-hand. Sturdy vial keeps strips safe from the elements.
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