Galvanized 4 Inch Square Electrical Box With 1-1/2 Inch Depth, Ten 1/2 Inch And Six 3/4 Inch Knockouts, Built Tough Raised Grounded Metal Junction Box, 21 Cu In Capacity For DIY Wiring In Walls Or Fixtures

12-Pack 4-in Square Galvanized Box, 21 cu in (101.6 mm)
✔️ 4-in square, 1-1/2 in deep, 21 cu in, 10x1/2 in & 6x3/4 in KO

This 4-in square, 1-1/2 in deep galvanized steel electrical box is built from 1/16'' thick material and UL listed. It is designed for use in 2-hour fire-rated walls and features ten 1/2 inch knockouts and six 3/4 inch knockouts, with a 21 cubic inch capacity. The trade size is 2-gang, and it’s packaged as a 12-pack for easier DIY wiring in walls or fixtures.

✅ 4-in square, 1-1/2 in deep, 21 cu in capacity
✅ Ten 1/2 in knockouts and six 3/4 in knockouts
✅ 1/16 in thick galvanized steel, raised grounded metal junction box
✅ UL listed, 12-pack, 2-gang trade size

💡 What is a square electrical box used for in building wiring?

This handy box protects wiring and supports fixtures in walls or ceilings.

- It provides a safe enclosure for switches and outlets in walls or ceilings. - It helps route cables neatly and keeps connections protected. - It fits in standard 2-gang configurations for ceiling fixtures or wall plates.