Hubbell 54531 Concrete Ring 4 Inch, Steel, 2 Inch Deep, 25-Pack, CSA Certified

Designed for high-rise construction applications, this concrete ring from Hubbell offers robust performance and reliable functionality. Crafted from durable steel, it features flat sides that ensure excellent contact for locknuts, while external ears facilitate secure attachment to wooden forms. The innovative design includes waxed fixture ears that prevent concrete from interfering with threads, and a removable top cover for pre-pour work, making installation seamless and efficient. CSA certified and engineered for flush installation after form removal, this concrete ring is an essential component for any electrical wiring system in concrete structures.