Brand Name: Raco *Height: 3-7/8 in. *Shape: Rectangle *Material: Steel *Number of Gangs: 1 gang *Product Type: Box Extension *Color: Gray *CSA Listed: Yes *Box Type: Ceiling *Weather Resistant: No *Number of Knockouts: 2 *Knockout Size: 1/2 in. *Application: For Surface Conduit *UL Listed: Yes *Number in Package: 25 pk *Hole Configuration: 1 Gang *ETL Listed: No *Capacity: 13 cu. in. *Discovery ACC, EXP