What is the Difference between the GC4 and GC2? Kelsey May 02, 2023 21:34 Updated The GC2 allows for 2 fermenters to be connected to the glycol chiller and the GC4 allows for 4.Download PDF at the bottom of the article, for all the GC2 and GC4 tech specs. GC2 and GC4 Specifications.pdf 200 KB Download Related articles What is the Difference between the GC2 and GC4? How warm/cold can the GC4 Glycol Chiller get other fermenters? Instructions - GC4 (Touch Screen) - Other Languages What is the maximum temperature the GC4 Glycol Chiller can be set to? Can I use a Glycol Chiller with my T500 Condenser?