This coupling from Cantex is engineered to seamlessly connect 4-inch Schedule 40 and Schedule 80 conduit, making it a versatile solution for both aboveground and underground applications. With a center stop feature, it ensures a precise depth of connection for reliable installations, while its construction is designed to be non-conductive and resistant to sunlight, enhancing its durability in various environments. Complying with NEMA TC-3 standards and holding UL and CSA listings, this coupling reflects Cantex's commitment to quality and safety in electrical infrastructure. Proudly made in the USA, it is an essential component for professionals seeking dependable performance in conduit systems.