Jockey Box Coil 3/8-inch 25' Stainless Steel Tubing 25' Stainless Steel Coil for beer or fluid heat exchange 3/8-in OD tube can cool a greater volume of beer faster, requiring less pressure Perfect part for DIY home brew and distilling projects: Jockey Box, HERMS coil, condensing snake Food Grade 304SS is easier to clean and maintain than copper