A penetration fitting assembly includes a base assembly including first and second gasket halves and first and second base halves, a pipe gasket, and a cap assembly including first and second cap halves. The gasket halves each include first and second semi-annular portions, and the base halves each include a semi-annular face plate defining openings, a semi-annular groove in a front surface of the face plate, a reinforcement flange extending along an outer peripheral edge of the face plate, and a second semi-annular groove in an outer surface of the reinforcement flange. The pipe gasket includes an annular portion defining a central opening, and stem portions extending in opposite directions from the annular portion. The cap halves each include a semi-cylindrical sidewall defining a semi-annular groove, a semi-circular cap plate connected to the semi-cylindrical sidewall, and a channel defined by the semi-circular cap plate.