This High Output Single RAD Fan Powerpack is part of the HO Aluminum Shrouded Fan Series designed with popular applications in mind. This assembly measures 23 7/16" wide by 15 7/16" top to bottom and only 2 3/4" thick to offer a precision fit. The raw aluminum shroud gives the user the freedom to polish, anodize, paint, or simply leave it natural to create a truly custom look for an affordable price. The 14" high output two speed fan is one of the best in our line-up offering 2100 CFM when on high to create the most airflow possible in a compact size.