- Single row of 1/2 in. and 3/4 in. knockouts
- Flat sides provide excellent contact for locknuts
- External ears are used to nail the concrete ring to the wood form
- Top cover is removable for before-pour work
- Waxed fixture ears prevent concrete from interfering with the threads
- Ears on inside of concrete ring are for fixtures
- Can support a light fixture up to 50 pounds
- 30.8 cu. in. capacity
Prop 65
- No
