The Chemglass (P/N OP-6600-21) OPTICHEM 24-Position Block for 2-5mL Round Bottom Vials is a tube holder for use in centrifugal vacuum evaporators. Anodized black hard coated aluminum construction is resistant to organic solvents and laser etched with the vial/tube size.

Specifications:

• Two -Tier Design
  
• Dimensions (W x D): 6 x 4 in.