Sanitary clamp (A.K.A. polyclamp, triclamp, tri-clamp, TC, s-clamp, s-line) Fittings are commonly used in food, dairy, & pharmaceutical industries. They make for easy assembly and breakdown of process lines and equipment for maintenance and cleaning. See catalog datasheet for more information. Manufacturer may be Steel & O'Brien, VNE, or Waukesha (WCB).