RSA™ glass is not available in any tube format and at this time.
RSA™ or Reduced Surface Activity glass is only available in 12x32mm autosampler vials. These vials will not release any contaminants such as chloroform or any other solvent into your sample.
For larger and smaller size vials, you may want to consider RSA-Pro X surface treatment. This is a non stick, hydrophobic surface treatment. Click HERE for information about RSA-Pro X vials and custom surface treatments.