Blichmann Short Fermenter Cooling Coil allows the fermentor to be a cooling system. Constructed with 304 Stainless Steel, this 25 Ft. long tube coil can withstand up to 50 psi. It is designed to fit in the Blichmann 7 Gallon Fermenter and may be used with a commercial glycol chilling system. The cooling coil is made to submerge in your fermenter as a temperature controller. Fully submerging the coil will give the best cooling result as it is twice as fast as only submerging it halfway. It is recommended to use food safe liquid when pumping.