Mission Rubber 3000150 CP 150 Band-Seal Specialty Coupling, 1-1/2-Inch Plastic/Steel/Cast-Iron to 1-1/2-Inch Plastic/Steel 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