These Thermo Scientific Nalgene Polypropylene Spigots feature a high-density polyethylene tubing adapter. The standard spigot for the Nalgene carboys accepts 5/8-inch (16-mm) I.D. tubing. It also includes a HDPE tubing adapter which takes tubing with 1/4- or 5/16-inch (6-8 mm) I.D.
Disassemble before autoclaving.
Polypropylene spigots have a high-density tubing adapter