Adapters for Rectangular Buckets for Eppendorf Rotor A-4-38

Adapters for 90 ml Rectangular Buckets for Eppendorf Rotor A-4-38. The options are (each sold in packs of 2): for 10x 5 – 7 mL round-bottom tubes , 13 mm × 100 mm for 8x 9 mL round-bottom tubes, 14.5 mm × 100 mm for 6x 15 mL round-bottom tubes, 17.5 mm × 100 mm for 4x 20 mL round-bottom tubes, 22 mm × 100 mm for 2x 90 mL round-bottom tubes, 25 mm × 100 mm