BrandTech 4701351 25mL Adjustable Volume Dispensette lll Digital Bottletop Dispenser, with SafetyPrime Valve Size: 2.5-25ml; type: digital adjustable with SafetyPrime valve Proven accurate and durable; uses a floating piston design with no seals to wear or replace; minimizing service downtime Is repeatedly autoclavable, and can have calibration adjustments made in seconds without tools or retesting, cutting calibration time by at least half Features new integrated safety discharge system that reduces risk of inadvertent dispensing if discharge tube is improperly installed or missing Complete with a valve mounting/calibration tool, telescoping filling tube, discharge tube, polypropylene thread adapters, operating manual, one-year warranty, and certificate of performance