Steel City 641-AL Adjustable 1-Gang Flush Floor Box Hub

The Steel City 641-AL is a fully adjustable, single-gang flush service floor box with a cast-iron body and aluminum trim, designed for poured-concrete floors in commercial applications. It provides 35 cubic inches of internal capacity, accepts 3/4-inch conduit hubs, and measures 5-1/2 inches long, 4 inches wide, and 3-5/8 inches high, with an aluminum trim ring for a clean, finished appearance. Interior and exterior leveling screws enable precise depth adjustment to achieve a true flush installation with the finished floor, and the unit ships with an expendable cap to prevent concrete ingress during the pour. This 1-gang floor box is UL and CSA approved and compatible with Steel City P64 cover types, making it suitable for recessed power or data outlets in offices, conference rooms, and other high-traffic areas where a durable, low-profile floor termination is required.