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The Southwire 73151-SW welded extension ring is a 1-1/2 inch deep galvanized steel accessory that extends 4-11/16 inch electrical boxes and accepts 1/2-inch and 3/4-inch knockouts. It is designed to increase wiring capacity and provide additional conduit entry options without removing existing box wiring. The ring is sold individually and fits standard 4-11/16 in openings for junction box extension applications.
Extends 4-11/16 in junction boxes by 1-1/2 in; welded galvanized steel; multiple knockouts
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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