Matco-Norca’s stainless steel shielded transition couplings are for use with dissimilar DWV pipe and fittings with an installation torque of 60" lb. The couplings have a maximum test pressure of 4.3 psi and a maximum operating temperature of 180° F. The product conforms with ASTM C1460, ASTM C564, CSA B602, UPC and cUPC. Comes in sizes 1/2" to 8" and clamps are joined with rivets.