this work ok , but I have not test it against hook up my shop vac since I can ' t find a adapter for my ridgid vac . I wish they have design the bag 4 inch shorter . when I fold up the gravity stand , the bag hang down and get catch up in the wheel . more than once , I fold the bag over the rod to roll the stand around , forget to unfold it and then use the saw . the bottom port fill up quickly and then really throw the dust back up through the blade area .