Description
GSC International RS-1H-B Rubber Stopper 1-Pound Set – Assorted Sizes with 1 Hole – Lab-Grade Soft Rubber with Durometer 45 – 33 Stoppers for Lab Use
This 1-pound set of GSC International rubber stoppers includes a variety of pre-drilled 1-hole stoppers in sizes #00 through #7. Made from high-quality, soft, non-greasy rubber with a durometer of 45, these stoppers are ideal for laboratory use. The consistent hole size (approx. 5mm diameter) allows for tubing and instrumentation applications. Each stopper is clearly molded for reliability and dimensional accuracy.
Set Includes:
Four stoppers each: sizes #00, #0, #1, #2, and #3
Three stoppers each: sizes #4, #5, #6, and #7
Not intended for use with food products.
Lab-Grade Quality: Soft, non-greasy rubber with a durometer of 45 for flexible yet reliable sealing in lab setups
Pre-Drilled Convenience: Each stopper has a 1-hole opening (approx. 5mm) ideal for tubing, probes, or glassware integration
Assorted Sizes Included: 33 total stoppers in sizes #00 to #7 to cover a wide range of applications
Clear Packaging & Count: Four stoppers each for sizes #00–#3 and three each for #4–#7
Not Food Safe: Designed for scientific and educational use—do not use with consumables
⚠️ Proposition 65 Warning for California Residents:
WARNING: This product may expose you to chemicals including styrene and/or bisphenol A (BPA), which are known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
Choking Hazard Warning:
WARNING: Choking Hazard – Small parts. Not for children under 3 years
Latex Allergy Warning:
WARNING: This product contains natural rubber latex, which may cause allergic reactions in some individuals.
This item is not a toy. It is intended for use in educational, scientific, or professional settings only. Adult supervision is required at all times. Improper use may result in injury or damage. Always follow safety guidelines and wear appropriate protective equipment when handling.
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