The heated thermal cycler lid is designed to make sure that optimized pressure is applied on the microplate for an efficient PCR reaction. When using PCR tubes, excess pressure on the tubes, from the heated lid can cause deformation of the tubes. To avoid this, we recommend using the Tray/Retainer set, as shown below:
Cat. No. 4381850, MicroAmp 96-Well Tray/Retainer Set for Veriti Systems – This Tray is for use with MicroAmp Strip Tubes (or MicroAmp Reaction Tubes without Caps, 0.2 mL), with the Veriti Thermal Cycler, SimpliAmp Thermal Cycler, and Proflex PCR System.
Cat. No. 403081, MicroAmp 96-Well Tray/Retainer Set – This Tray is for use with MicroAmp Strip Tubes (or MicroAmp Reaction Tubes without Caps, 0.2 mL), with the 7000 System, 2720 Thermal Cycler, and GeneAmp PCR System 9700.
Cat. No. 4379983, MicroAmp 96-Well Tray for VeriFlex Blocks – This Tray is for use with MicroAmp Strip Tubes (or MicroAmp Reaction Tubes with Caps, 0.1 mL), with the Veriti Thermal Cycler, Veriti Fast Thermal Cycler, SimpliAmp Thermal Cycler, and Proflex PCR System.
Please take a look at this video: How to Use Adapter Tray Retainers in Thermal Cycler Starter Kits (https://www.youtube.com/watch?v=1uh2ZxZJtgs).
Find additional tips, troubleshooting help, and resources within our PCR Thermal Cyclers Support Center.