Tutorials

Standard Taper Ground Glass Joints

https://www.youtube.com/watch?v=ZInUdL_fCL4

Stopcocks

https://www.youtube.com/watch?v=HK957tJF5Mg

Vacuum Valves

https://www.youtube.com/watch?v=pQSRy3I2FU8

Spherical (Ball & Socket) Joints, O-Ring Joints

https://www.youtube.com/watch?v=tN7m8CjseF8&feature=youtu.be

Internal Glass Threads

https://www.youtube.com/watch?v=XXBN2WqfXF8&feature=youtu.be

Fritted Discs

https://www.youtube.com/watch?v=1cRq2ec1BVk&feature=youtu.be

Unstick ground glass joints

https://www.youtube.com/watch?v=pjkwFZLUCP0&feature=youtu.be