The VT1.3.3 Tube Adapter is a laboratory accessory specifically designed for use with vortex mixers to hold multiple test tubes simultaneously during mixing or agitation. It is manufactured by DLAB and other laboratory equipment suppliers.

• Capacity: Designed to hold 12 test tubes (some variations specify up to 16 holes).
• Tube Size: Compatible with test tubes that have a 12 mm diameter (typically 2–7 mL or 5 mL volumes).
• Compatibility: Used with the VT1.3 Universal top plate and is compatible with vortex mixer models such as the DLAB MX-S, MX-F, and PS1.1.
• Material: Usually consists of a foam insert that fits into a universal adapter plate.
• Part Number: Commonly referenced by the manufacturer part number 18900022.

• Tube Specifics: It is optimized for tubes with a 12 mm diameter, typically accommodating volumes between 2 mL and 7 mL (most commonly 5 mL tubes).
• Capacity Variations: Depending on the specific production batch or vendor, the adapter features either 12 or 16 holes for parallel sample processing.
• Material Design: It is constructed as a foam tube insert that provides a snug, secure fit to prevent tube rattling or displacement during high-speed orbital mixing. [1, 2, 3, 4, 5]