Skip to Content
Merck
CN
Sign Into View Organizational & Contract Pricing

About This Item

UNSPSC Code:
41100000
NACRES:
NB.43
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

material

silicone

sterility

non-sterile

feature

fits flask 50 ‑ 500 mL

packaging

pack of 1

manufacturer/tradename

Sigma-Aldrich

capacity

50-200 mL

Looking for similar products? Visit Product Comparison Guide

General description

Reversible; can also be stacked upon each other. Three sizes provide six different diameters for round-bottom flasks ranging from 50 to 6,000 mL. Excellent adhesion to glass prevents slippage and also offers thermal and electrical insulation. Available in two rubber types.
Black natural rubber − usable at temperatures from -20 to 70 °C (dry heat), -20 to 120 °C (moist heat), and has excellent chemical resistance.
Blue silicone − usable at temperatures from -20 to 200 °C. Withstands repeated high temperature or radiation. Physiologically non-toxic, biologically neutral.

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service