A1) 54 Diameter x H30 A2) 54 Diameter x H30 with 1-24" center fill A3) 54 Diameter x H30 with 8-8" perimeter extensions B1) 60 Diameter x H30 B2) 60 Diameter x H30 with 1-24" center fill B3) 60 Diameter x H30 with 8-8" perimeter extensions