What is the trade name for PVC-coated conduit?

The trade name for PVC-coated conduit is Robroy. This company is well-known in the electrical and construction industry for producing high-quality PVC-coated conduit and fittings designed to provide additional protection against the elements and corrosion. PVC coating significantly enhances the durability and lifespan of traditional metal conduits by offering resistance to moisture, chemicals, and other environmental factors.

While other choices might represent various products or brands in related areas, Robroy is specifically recognized for its PVC-coated conduit offerings, making it the correct answer in this context.