Hubbell Wiring Device-Kellems, H0381, Liquidtight Connector, Insulated Straight Male Metallic, 3/8 in Trade, 0.61 in Throat, For Use With: PolyTuff I Non-Metallic and Liquidtight Metal Conduit, Surface Mounting, Steel, Zinc Plated, 1.43 in L x 1.2 in W Dimensions