This apparatus is useful as a vacuum adapter or addition tube.

• Top outer [ST] joint
• Bottom inner [ST] joint
• With hose connection
• Fabricated from borosilicate glass

The stem length below the joint on this adapter is 130mm. Use with a 5/16-inch I.D. tubing, size A hose connection. Adapter has an outer standard taper joint at the top and an inner standard taper joint at the bottom.