Appleton NEER Conduit Bushing, Series: PB-D, 1-1/2 in Trade, Insulated Insulated/Non-Insulated, 221 deg F, Polypropylene, Gray, 2.28 in Dia x 0.49 in THK Dimensions
Use at end of threaded conduit or conduit connector, to provide smooth well rounded bearing surface for wires or cables as required by the national electrical code