These extension rings are made out of metal.
Often used with BX, EMT or rigid conduits.
Many conduit KO’s (knockout) boxes must be used with proper connectors.
Available with 4 in. x 4 in. x 1/2 in. screws.
Great for adding extra capacity to the box.
Useful when installing on new wall surfaces.
All Products’ Pricing are for general referencing only.
All Products’ Pricing are Subject to Change Without notice.
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