Hi Bruce,
Thank you for the feedback!
Typically, the box will only include a mounting bracket for the exhaust orientation selected (Top or Back Vent) and the design of this bracket could vary. If you believe you are missing any parts, please contact our team at support@victoryrangehoods.com with your order information for further assistance.
We are glad that you are happy with the range hood and 10' duct choice! The CFM on each level is approximately 400 CFM / 650 CFM / 950 CFM / 1200 CFM.
Thank you again for the review! We appreciate it.