Install over old metal grid. Inexpensive alternative to replacing existing ceilings. Easily renovate rusted, deteriorated, or smoke stained metal ceiling grid. Works on 2' x 2' or 2' x 4' ceiling grid systems. PVC plastic is easy to work with and cut. Doesn't rust or show scratches. 4' wall bracket covers, 4' main tee covers, 2' tee covers, and 4' tee covers. 15/16'' wide. Available in white. No. 250-00: 4' wall bracket cover No. 210-00: 4' main tee cover No. 220-00: 2' tee cover No. 230-00: 4' tee cover