Campbell Manufacturing Inc. has recently expanded its line of tank crosses. Red brass cast union crosses now are available with 1- or 1 1/4-inch tank connections, in short or long lengths. All of the cast union crosses have 2 1/4-inch top tappings for a pressure switch and a gauge. In addition, the 1-inch crosses have 2 1/2-inch front tappings and the 1 1/4-inch crosses have 2 3/4-inch front tappings for a relief valve and a boiler drain. Campbell Manufacturing Inc.