4-in dia PVC Adapter Fitting in the Sewage Pipe & Fittings department at Lowes.com
RELN 4 in. Corrugated Pipe Adapter 000225
PVC 4-in x 3 Hub x Hub Adapter in the PVC DWV Pipe & Fittings department at Lowes.com
AG180-002 Universal Multi-Drain Air Gap for Condensates, Water Softeners and Water Filters with 1/2-inch and 3/4-inch PVC and Copper Pipe Adapters | AirGap International
Bend-A-Drain 3-in x 4-in Corrugated Downspout Adapter Fittings in the Corrugated Drainage Pipe Fittings department at Lowes.com
Oatey 43569 4 Inch Pvc Snap Inch Drain (038753435695-1)
4x4 Inch PVC Sewer & Drain Adapter Coupling | PlumbersStock
Bend-A-Drain 4-in x 4-in Corrugated Downspout Adapter Fittings in the Corrugated Drainage Pipe Fittings department at Lowes.com
Plumb Pak, White Keeney 46WK 1-1/4-Inch by 1-1/2-Inch Straight Extension Coupling Trap Adapter, 1-1/2-Inch 1-1/2-Inch - Pipe Fittings - Amazon.com