Mission Rubber 3001215 CK 215 Band-Seal Specialty Coupling, 2-Inch Cast-Iron/Plastic/Steel to 1-1/2-Inch Copper or 1-1/4-Inch Plastic Corrosion-resistant 300 Series stainless steel components Internal rubber sleeve reduces noise and vibration Easy to assemble, disassemble, and reuse Neoprene rubber sleeve conforms to ASTM C 564 Band-Seal Specialty Couplings conform to ASTM C 1460