Ammo AR241, 4" Square Metal Electrical Box, MC BOX 2-1/8″ DEEP with “FB” BRACKET

This is a 4-inch square, 2-1/8-inch deep steel electrical box with 30.3 cubic inch capacity, designed for professional installations.

• The description claims the box is built from rugged welded steel.
• The description claims it includes both NM cable clamps and BX / MC cable clamps.
• The description claims it is listed for 2-hour fire-rated wall installations.