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1″ 3#4 Wire Size Compression Type For Water Tight Connector

This refers to the size of the conduit fitting, specifically the diameter of the opening through which cables or wires pass. In this case, it is designed for a conduit. Watertight, this conduit fitting is designed to provide a high degree of protection against water or moisture infiltration. This is important for outdoor or wet applications to prevent damage to electrical connections, which is a protective pipe or tubing used to encase electrical wires