Brand Name: Sigma Electric | Bushing Inside Diameter: 0.75 in. | Bushing Outside Diameter: 1.29 in. | Bushing Thickness: .1 in. | CSA LIsted: Yes | Conduit Size: 3/4 in. | Insulating: Yes | Material: Plastic | Number in Package: 100 pk | Packaging Type: Bulk | Sub Brand: ProConnex | Trade Size: 3/4 in. Sigma's Plastic Insulating Bushings are used on the end of Rigid conduit, IMC and other threaded connectors to provide a smooth well rounded bearing surface to protect wires or cables when pulling. These non-metallic bushings meet the requirements of the National Electric Code (NEC). | Provides a smooth surface that protects wires | Used on the end of 3/4-in Rigid conduit, IMC or other threaded connectors | Flame retardant | Rated 105Â °C | Product is cULus listed | Product is cULus listed