2 openings, black grate, 1 plug and 2 outlets, black. For use in large lawn areas, large landscape areas, residential driveways, and garages. Grate is made from structural plastic with UV inhibitors. Class B loading rating: Loads of 61 P.S.I. to 175 P.S.I. Recommended for medium duty pneumatic tire traffic, autos, and light trucks at speeds of less than 20 MPH. Accepts 3" and 4" corrugated pipe or sewer and drain pipe.