This Reactor Rod was custom built to be used with the 2 bbl MoreBeer! Pro Conical Fermenter, but can easily be integrated to other vessels with a 4" tri-clamp top port. Unlike other in-solution cooling coils on the market, the Reactor Rod utilizes a straight vertical design. Without all the curves and bends of a cooling coil, it is easier to scrub and sanitize the unit prior to setup and after use. The four cooling rods are 41" long measured from the bottom of the T.C. fitting.