EXTENSION RING STL 2GANG *Brand Name: Raco *Capacity: 22-1/2 cu in *Shape: Square *Material: Steel *Number of Gangs: 2 gang *Product Type: Extension Ring *Color: Metallic *Width: 4 in. *Height: 4 in. *Depth: 1.5 in. *Knockout Size: 1/2 X 3/4 in. *UL Listed: Yes *Number of Knockouts: 12 *Number in Package: 1 pk *Packaging Type: Bulk *Discovery ACC, EXP