Scientific Machine (SciMac) is your source for High-Quality PTFE laboratory products

Technical Information

What size stopper will fit my flask?

How do I measure the flask neck?

What size stopcock will fit burets and funnels?

What size sleeve will fit my flask?

How do I measure a stopcock Barrel?

What does the size designation 11/25 refer to?

Can I replace a rubber stopper with a Teflon stopper?