32.5 Cu. In. 4 square inch electrical junction box for use with nonmetallic sheathed cable - Machine tapped cover screw holes, cover screws included - 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 - PVC - Thermoplastic - Size: D=2 1/2", W=4", H=4" - Mount with Stud mount hanger bracket offset for flush mount plaster ring