Strain Relief Cord and Cable Connector Gland, Type Grommet, Thread Size 1 Inch, Constructional Feature Liquidtight, Cable Outer Diameter 0.375 to 0.5 Inch, Material Rubber, Enclosure Class I Div 2, Class II Div 1 2, Class III, NEMA 3R, Approval UL 514B, CSA C22.2