Overview Product Description 227630 Old-Stock, Nibco CA01950 Socket Coupling, 6" x 4", SCH80, 4501R 6X4 SOC COUP PVC 80. Item appears Unused and has been in storage for some time.. Austin Surplus SKU: 227630 Location: GRG-R19-P09-S02-0007875 Product Videos Custom Field Product Reviews