Wall Brackets, Fits Square Base Size 30 in, Compatible Grainger Part Number 56JN86, 56JN87, 56JN89, 56JN90, 56JN93, 56JN94, 56JN97, 56JN98, 56JN99, 56JP01, 56JP02, 56JP03, 56JP04, 56JP05, 56JP06, 56JP07, 56JP08, 6JN88, Material Galvanized Steel, Includes Hardware Kit, For Fan Type Upblast Fans, For Fan Mounting Type Wall Mount, Container Capacity Not Applicable, Compatible Manufacturer Model Number Upblast or Downblast 180-200, For Use With Belt Drive Exhaust Fan, Centrifugal Upblast Direct