Carlon Screw-on 4 in. X 4 in. PVC Square Box B249B

Double-gang multi-purpose electrical box. Mounting means: side flange internal screws. Versatile non-metallic box design that works on wood or steel studs in new or old work. Simple fast installation - vertical or horizontal. Captive nails and screw guides for vertical or horizontal mounting. Break-off flange for new or old work. Large capacity to hold dimmers and larger switches. Suitable for wood and steel studs. Internal screw guides for installation. Internal mounts allow to change depth of installation.