As we update our core systems, key features of the website including ordering and real-time price and availability, may be unavailable from 8 PM CST on Friday evening, September 20th until 9 AM CST on Saturday morning, September 21st.

Please note that you will still have telephone and email access to our local offices during this period.

We apologize for any inconvenience this may cause.

Labware Tutorials

Threaded Ground-glass Joint Tutorial

Image 1—A complete threaded ground-glass
  Image 2—It consists of an externally threaded female ground-glass standard taper joint and a corresponding male joint with threaded plastic nut.
Image 3—A plastic retaining ring loosens the
joint for safe disassembly.
  Image 4—The threaded plastic nut secures the joint without the use of clamps.
Image 5—The O-ring seals above the
ground-glass joint, eliminating the need for grease on the joint.