Duda Energy HX1230BWGH:M12 Male Npt Ports Copper Brazed Heat Exchanger Chills a 10 gallon batch in 11 minutes under standard conditions Length: 7.5'', width: 2.9'', height: 2.9'', heat exchange Area: 1.2ft, with m5-0.8 mounting studs Design temperature:-319 Degree to 430 Degree,304 stainless steel inner plates brazed with 99.Percent pure Copper Corrosion resistant, UL listed, CE, Iso 9001:2008, tuvreinland Iso9001:2000 See other heat exchangers by Duda Energy for additional options