⚛️ Description: This is a standard plastic barb screw top compatible with our FD-600M gas analyzers. The barb top screws on top of the analyzer to then be attached to 3mm or 4mm ID tube for gas sampling.
👫 Instructions: Place the cap on the analyzer top and simply screw to finger tight. Make sure the O-ring is on the analyzer thread, so when the cap makes contact on tightening it is tight and there are no microscopic air vacuum leaks.