where can i find an adapter to hook my shop vac to my sander ?
Generally it's easiest to by some PVC couplers for that purpose. What sander and vacuum do you have?
FrankP
A couple of feet of duct tape worked for my DeWalt ROS. It lasted for years, then took a couple of minutes to fix.
Laszlo
Bosch sells a hose with a fitting that fits a standard shopvac. The pick-up end was too big for my Porter Cable sander but a couple turns of masking tape on the sander’s exhaust fitting works fine. I can’t remember what I paid for it but it’s lasted for several years.