AMAZON CONSTRUCTION 6-inch 10-foot Solid 2729 PVC Drain Pipe
Vent Systems 8" inch to 6" inch Duct Reducer Adapter Connector Fitting Pipe Increaser Reducer Cone for HVAC Ventilation Systems, ABS Plastic PVC Pipe 200 to 150 mm - - Amazon.com
Canplas 192156 PVC DWV Sanitary Tee, 6-Inch, White - Pipe Fittings - Amazon .com
Spears 6" X 6" X 2" PVC Reducing Tee - SLIPxSLIPxSLIP Connections - Industrial Pipe Fittings - Amazon.com