Save time, increase lab productivity and make chemical handling easier and safer with Sapphire Bottletop Dispensers. This convenient dispenser with its innovative dual valve technology, allows you to simplyrinse and refill your bottle without dismounting the dispenser. The functionality allows you to operate in four modes: Dilution, Rinsing, Dual Liquid Handling, and Re-circulation. Fully autoclavable at 121°C, 15 psi for 10-15 minutes. Comes with five bottle adapters and a calibration certificate.