RACO® Concrete Ring, 16 Knockouts, Double Row 1/2 and 3/4 in Conduit Knockouts, 43 cu-in, Welded, Steel, Galvanized, 4 in H x 4 in W x 3-1/2 in D
- External ears are used to nail the ring to the wood form
- Top cover is removable for before-pour work
- Ears on inside of box are for fixtures
- Waxed fixture ears prevent concrete from interfering with the threads
- Used in high-rise construction
- Not designed for ceiling fan support, the maximum support load for a static fixture is 50 lbs.
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Specification Sheet