Grease Containment, Fits Square Base Size Not Applicable, Compatible Grainger Part Number 16D524, 2RB66, 3ATT8, 3ATT9, 56JN76, 56JN77, 56JN78, 56JN79, 56JN80, 56JN81, 56JN82, 56JN83, 56JN84, 56JN85, 56JN92, 56MW60, 56MW61, 56MW62, 56MW64, 56MW65, 56MW66, 56MW67, 56MW68, 56MW72, 60KT20, 6JN91, Material Plastic, Includes Hardware Kit, Curb Cap Support, (2) Windband Support Brackets, For Fan Type Upblast Fans, For Fan Mounting Type Wall Mount, Container Capacity 1 gal