EVERCONNECT 4824 Flexible Pvc Rubber Coupling with Stainless Steel Clamps, 1.5 inch, Black Flexible Coupling Compatible with cast iron, plastic, copper, lead, and steel piping Flexible Connectors are Leak-Proof, Rot-Proof and Sealed Against Infiltration and Exfiltration, May be used for non-pressure drain, waste, and vent (DWV) piping systems and sewer systems indoors and outdoors Conforms to ASTM C1173, CSA B602, Certified and UPC Approved, Rated for underground use Each Rubber Fitting is marked with part number, size, and certifications