Nunc™ 1.8mL Externally-Threaded Universal Tubes, non-coded, in 1D/2D barcoded latch rack - FAQs

What is the difference between Nunc 1.8mL Externally-Threaded Universal Tubes and Racks (Cat. Nos. 374500-BR and 374501-BR)?

Catalog number 374500-BR is our Nunc universal tubes with 2D code in a barcoded latch rack.
Catalog number 374501-BR is our Nunc universal tubes without 2D code in a barcoded latch rack.