Cole-Parmer Micro Aperture Stoppers, Rubber or Neoprene

Use the tapered micro stoppers for openings from 4 to 12.7 mm. Available in soft, natural red rubber, or heat-resistant, green neoprene. Materials feature low sulfur content and low extractables. Cut to size.
$131.00 - $165.00USD / Bag of 24

2 variations of this product are available.

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2 PRODUCT OPTIONS
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Top Outside Diameter (OD) (mm)
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12.7
$165.00USD / Bag of 24
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12.7
$131.00USD / Bag of 24
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