Dispense Volume Range: 250ul to 5mL Pump Speed Range: 90-250 RPM Microtube Compatibility: Flexible to work with a large range of branded screw-cap cryovials from suppliers such as Corning, Matrix, Nalgene, and Nunc Microtubes Used for Testing: 2.0mL Internal Thread Corning 430488 Cryogenic Vials Microtube Capacity: 24 position