Incorporates the use of KONTES® PTFE “Varibor” metering plug 821111
· Turning the adjusting knob allows control of flow rate from dropwise to full flow
· Facilitates reproducible addition rates
· Standard Taper joint at the top; Standard Taper joint with drip tip at the bottom
· Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements