Conduit Coupling; Type Long Line; Trade Size 4"; Length 3.82"; End Style Hub x Hub; Material PVC; Standard Package 20 per carton; Applicable Standard UL 651/UL 514B, NEMA TC-3; Approval CSA, UL; Socket Size 1.78" Depth x 5" Outside Diameter x 4.5" Inside Diameter; Application Institutional, Commercial, Industrial Building