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GCA Glycol Chiller Adapter Kit

Connect almost any fermenter to the GCA for access to accurate temperature control during fermentation.



Availability In stock
All Grain Brewing

The Grainfather GCA makes accurate temperature control more accessible for brewers. Whether you have a plastic or stainless steel fermenter, bucket or barrel, or even a conical, the GCA has everything that you need to connect your fermenter to the GC4. Take control of your fermentation and create even better beers.


  • Compact design with colour display screen
  • Use the GCA to connect a variety of different fermenters to the GC4 for accurate temperature control during fermentation
  • Wireless capabilities, making it compatible with the Grainfather App so you can control your fermentation from anywhere
  • Backed by a 3-year warranty


View the GCA Instructions online


  • Grainfather GCA
  • Heating pad
  • Cooling coil
  • Rubber bung
  • Temperature probe
  • 3 x 6.5ft insulated hoses
  • 3 x hose clamps
  • 5 x rubber bung stoppers
  • NOTE: GC4 and fermenter are not included


  • GCA: 4 x 2”
  • Heating pad: 3 x 9’’
  • Cooling coil: 20 x 5”


  • GCA: 6.5ft
  • Heating pad: 6.5ft
  • Temperature probe: 6.5ft


  • GCA: 12V
  • Heating pad: 30W


  • WiFi control
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