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Strictly Necessary
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PYREX® Glass Dropper Bottles
Pyrex® glass dropper bottles are recommended for use when preventing contamination by solubility or pH change is important. Dropper bottle stoppers are not covered by ground glass joint specifications, but are ground to an interchangeable 1:10 taper. Matching dropper pipet is included. Material: Pyrex® Borosilicate Glass Code 7740.