Sanitary - Mini Tri-Clamp Hose Fitting Westco fittings are made from 304/316 stainless. They are used in control equipment for food & beverage, filling equipment, dairy, cosmetic and pharmaceutical processing industries. They have a brushed polished OD with a 15Ra inside finish and tri-clamp ends as well as they meet all industry standards. We have two hose sizes available 1/2" and 3/4" with .990 clamp size.