What are the differences between the 13, 16, and 20 mm wells?
DRB 200 well sizes
Each well size corresponds to a type of chemistry or test kit. 13mm wells are commonly used for TNT+ Chemistries. 16mm wells are commonly used for Test 'n Tubes chemistries. 20mm wells are designed for sample pretreatment TNT+ chemistries. Please verify with your chemistry method to determine which blocks are recommended.