Three Ways to Order Your Science Supplies

Online - Pay by credit card, check or your account.

By Phone - Call us at 800.628.7748
Mon. - Thurs. 7:30 - 3:00 pm, Fri. 7:30-11:30 pm, EST


By Fax - Fax your order with our
pdf form.

Two Hole Stoppers (Size: 2)

Size: 2. Top Dia. (mm): 20. Bottom Dia. (mm): 16. Approx. No. Per Lb.: 62. Durable, resilient black laboratory stoppers. Low in free sulfur.

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