(Used) 2012 Mack CXU613, FIFTH WHEEL- Make: Fontaine, Model Number: SL7ATB775024, Type: Air Slide, Length: 51 and 5/8", Height: 7.5", Frame Width: 34", For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921