Charlotte Pipe 4"x2" ABS/DWV Coupling. It is a hubxhub coupling that reduces or increases pipe sizes for non-pressure drain, waste & vent installation. It has low chemical resistance and is ASTM D 3965 and ASTM F 628 approved. It comes with a 5-year limited warranty and is NSF safety listed.
WARNING: This product can expose you to chemicals including titanium dioxide and carbon black which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov