Drilling a hole to pass an antenna cable through a rooftop or transom can allow water to pass through if not properly sealed. Provides a waterproof pass-through for antenna cables without requiring removal of the factory-installed connector.For use above the waterline only.Key FeaturesPre-drilled and slit rubber seals for easier installationIncluded stainless steel fastenersSpecificationsMax Cable Diameter: 0.56" (14.22 mm)Max Connector Diameter: 1.40" (35.56 mm)Body Material:AcetalRing Material: UV-Stabilized ThermoplasticSeal Material: UV-Stabilized Buna-N RubberWeight: 0.34lb. (0.15 kg)Mounting Hole: Accept #8 x 7/8" Screws