Can I install it in drywall after the wall is closed?

🧰 Want easy installation? MAKERELE Old Work Electrical Outlet Box, Plastic Junction Box, for Home Improvement,for Switches,ETL Listed and 2 Hours Fire Protection installs in 4 steps — See how →Absolutely. Swing-clamp ‘old-work’ wings tighten against existing drywall (½–1 in) with just a screwdriver—no studs or back-brackets required.

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