Loren Cook Propeller Inline Fans, TID, TIB, ADD, ADB, EDD, and EDB are designed to be easily mounted in any orientation in either ducted or non-ducted systems. All units include integral inlet and outlet flanges for direct in-line mounting. The units are produced in an ISO 9001 certified facility and are listed by Underwriters Laboratories (UL 705) and UL Listed for Canada (cUL 705).