The FDM 12×12 Square d-Box with GRATE black lid comes complete with black lid (solid or grate) and two seals that accept 2″, 3″, 4″, and corrugated pipe. You can choose your inlet and outlet heights, and it can accept one inlet and up to three outlets. Precut with two inlet/outlet holes. It will accept 6″ pipe however seal is sold separately.
FDM 12×12 Square D-Box (Grate Lid)