Constructed with stainless steel plates that have been fused together with copper solder, the small channels create more surface area for the wort to travel over, and more time for the water to cool the wort down. They are 12.5" long, 3" wide, and 2" thick. The wort inlet and outlet is 1/2 Inch Male Pipe Thread, and the water in and out is 3/4 Inch Male Garden Hose Thread.
We use this one in the store during brewing demonstrations. Cleaning the chiller can be a bit harder than immersion or counter-flow chillers, due to the tiny pockets created by the channels in the plates. These pockets can harbor cold break material, hop remains, or any other solid, and if not removed can cause infection in subsequent batches. The best way to clean is to recirculate a solution of hot water and PBW through the chiller as normal, then back-flush the chiller, bringing the PBW through the "Wort Out" side in out through the "Wort In" side. This should remove any particulate that may have gotten trapped by the folds in the plates. After removing any fittings, the assembly can be boiled for further sanitation assurance.
