FLBC8500 Single Gang Box Kit, Individual Boxes Lock Together To Form Two-Gang And Three-Gang Boxes.

Arlington S Ul Listed Gangable Concrete Floor Boxes Give Installers The Economical, Convenient Way To Add Receptacles In New Concrete Pours In Commercial Installations. Build The Box You Need! Use The Single Gang Box As Shipped Or Lock Them Together To Build A Twoor Three-Gang Box. You Decide. Then Buy The Cover Kit That Fits.