Click to expand Tap to zoom Grainfather GC4 Glycol Chiller Adapter Kit - GCA SKU 10937 Save 0% Save % Original price $308.95 - Original price $308.95 Original price $308.95 $308.95 - $308.95 Current price $308.95 | / Quantity Add to cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. Convert almost any fermenter to be compatible with the Grainfather GC4 and wirelessly controllable via the Grainfather app!