Steven S Covington , GA May 11, 2020 Appliance: Roper Refrigerator RS20DKXBW00 Roper Refrigerator Rs20dkxbw00: Shelf support brackets were broken and some missing. How to replace Shelf Stud Kit. I ordered shelf support kit AP3109341 and made repair to all shelves quickly and easily. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes