Ceiling Fan Pan Outlet Box, 8 CUIN Capacity, 4" Diameter x 5/8" Depth, Mounts Directly To Existing Ceiling Joist, Rated For Fan Weight Up To 35 LB, Rated For Fixture Weight Up To 50 LB, PVC Construction, Non-Conductive, Non-Corrosive, Lightweight, Easy To Install, Carlon Zip Box.