Conduit Adapter; Type Female Threaded; Connection Type PVC Conduit to Threaded Fitting; Trade Size 3"; Material PVC; Standard Package 40 per Carton; Applicable Standard NEMA TC-3; Approval UL 651, UL 514, CSA; Overall Dimension 3.09" Inner Diameter x 3.46" Length; Thread Size 3"-8 TPI; Width Across Flat 4.18"; Application Residential, Industrial, Commercial Buildings