Use to reduce the size of the Conduit hole knockout opening in a steel outlet box or other metal enclosure. Must use one inside the enclosure opening and one on the outside. Ul listed, CSA approved.
- Use to reduce the size of the Conduit hole knockout opening in a steel outlet box or other metal enclosure. Must use one inside the enclosure opening and one on the outside. UL listed, CSA approved
- Can also be used with metal risers
- This product is manufactured in United States