- Gravity Damper. (UL 705 Only)
- Motorized Damper. (UL 705 Only)
- Wall Mount Sleeve.
- Roof Curb. (Vented & Non-Vented)
- Grease Collection Box.
- Bird Screen. (UL 705 Only)
- Base Hinging Kit or Hinged Sub Base. (for NFPA96 compliance)
- Extra Set of V-Belts
- Combination package that includes a supply fan mounted on the same roof curb.