Use the Bridgeport 2" 766-2 Zinc Die Cast Service Entrance Watertight Connector with 0.837" Opening to create a watertight seal around service entrance cable. These connectors feature a compression connection that creates a watertight seal. Made of zinc, the body provides corrosion resistance for long-term use in most environments. The connector is listed for 2" knockouts and is suitable for use with 0.837" through 1.326" service cable. This fitting meets Nema Standard: FB-1 and UL Standard: UL-514B.