The specs for your trailer are also on the Keystone website. Go to
https://www.keystonerv.com/travel-tr...alf-ton/specs/ That "should" take you to the Cougar Half Ton specifications page. In the upper right corner you'll see a box marked "FLOORPLAN YEAR" click on 2012 and you will find the first column is the 21RBSWE with all the specs annotated.