Sioux Chief 920-921 Series TrimTite shallow escutcheon shall be used where necessary on copper or steel stub outs. Escutcheons shall be 100 percent corrosion proof. Escutcheon shall be molded out of a shape-memory material which will retain its shape and grip on tube permanently. Escutcheon shall be designed to work with either CTS or IPS tubing and be available in white.