32.3 Cu. In. 4 square inch electrical junction box for use with nonmetallic sheathed cable - Machine tapped cover screw holes, cover screws included, rigid hard box construction, no distortion with high temperatures, shatter resistant with low temperatures - In the wall junction box with optional single and two gang plaster ring covers for junction box capacity and device applications - 2 HR fire resistive walls - Fiberglass reinforced polyester - thermoset box - Size: D=2 1/2", W=4 1/16", H=4 1/16" - Mount with Angled mid-nails - Speed Klamps™ factory installed