Which tubing gauge do I need for my Microlab 600?

The Microlab 600 fill and dispense tubing assemblies are available with 12 or 18 gauge tubing.  Tubing gauge recommendations are based off of the largest syringe being used.  If the largest volume syringe is 2.5 mL or larger, 12 gauge tubing is recommended.  If the largest volume syringe is 1 mL or smaller, 18 gauge tubing is recommended.