Match the rack to the tube, then to whether it stays on the bench or goes in the fridge or freezer.
Microtubes on the Bench
80-place: R1040, 1.5/2.0 mL, recessed wells for conical tubes
Reversible: R1050 (96-place) or R1090-B (60-place)
Tubes: 0.5, 1.5, and 2.0 mL
15 and 50 mL Conicals
4-way: R1030: 4 × 50 mL, 12 × 15 mL, or 32 microtubes
Combo: R1070: 30 × 15 mL plus 20 × 50 mL
Tip: R1030 racks snap together
PCR Tubes and Strips
Rack: R1010, 96 × 0.2 mL with lid
Holds: Tubes, strips, or a plate
Use: Bench workstation or cold storage
Fridge and Freezer
100-place: R1020 box with attached hinged lid, 7 colors
81-place: R1060 9×9 freezer rack with lid
Tubes: 1.5 and 2 mL