Product Features

  • Our StonyLab White Rubber Stoppers provide exceptional seal for many applications

  • Available in whole sizes 000# through 000#. Please read the dimension description image carefully before making a decision (might have 1mm measurement error)

  • Exhibit excellent resilience and retain pliability over a long period

  • Please note these rubber stoppers are NOT food grade

  • StonyLab ensures high quality products and premium customer service. If received damaged, please contact us immediately. We will solve it until satisfied


Product Options

  • #000: XL-815524

  • #00: XL-815525

  • #0: XL-815529

  • #1: XL-815528

  • #2: XL-815527

  • #3: XL-815526

  • #4: XL-815533

  • #5: XL-815532

  • #6: XL-815531

  • #7: XL-815530

  • #8: XL-815537

  • #9: XL-815538

  • #10: XL-815539

  • #11: XL-815540

  • #12: XL-815541

Solid Rubber Stoppers, Lab Seal Rubber Stoppers from Size 000# to 12#

SKU: XL-815651
  • Processing Time

    Usually Ship in 5 - 7 Business Days. Shipping may take longer than expected during COVID-19.

Customer questions & answers



Just received it. Haven't heated, or dropped, it yet. The interior diameter of the opening is 1 3/8 in, or 34.9 mm, which means a #8 stopper should work.<br><br>No visible bubbles or deformations.

Brandon Shelton

First things first, if you do decide to purchase this to use with a Buchner funnel you are absolutely going to need adapters or cones for your funnel. If you search "buchner funnel adapters" on here you should be able to find them.<br><br>Glass arrived with no visible defects. Have used several times with a glorified aquarium pump and Buchner funnel for distillation and making tinctures. Works without issue, but the mouth of the flask is quite large and Buchner funnels tend to run "thin." To remedy this just buy adapters.

Dawood Ajmi

BROKEN!! ITEM ARRIVED BROKEN, Shattered Glass Allover the Package!!!

Evan Clinthorne

Great value. Works as needed. Minor imperfections that do not impact use.

Jason huston

Cracked Bad rubber .I don't think this is rubber it is flaky dry garbage that will drop crumbs of rubber into your expierament



120 Lake Ave S Suite 22
Nesconset, New York 11767


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