Honeywell ZD10X24 Automatic Rectangular damper  10L x24H motor on 24" side. Free freight on this item in the continental U.S.(UPS Ground) Items are new and unused in original box. Please  call (952) 884-8266 with questions call (612) 518-6683 After 5:00 and on weekends. I ship nationwide.  Minnesota residents will be charged sales tax.