Brandtech Scientific - 4600361 - BrandTech Dispensette S Bottletop Dispenser, 5 - 50 mL, digital, recirculating

ITEM #: 9539556
The BRAND Dispensette® S and Dispensette S Organic features a floating piston design with even lower operating forces, a safety discharge system, and a sealing system, eliminating sealing washers for even better reliability. Designed to attach directly to your reagent bottle eliminating poured transfer. 
Choose the Dispensette S for general purpose dispensing of acids, bases, bufers and many common solvents (NOT suitable for HF). For hydrofluoric acid, choose the Dispensette S Trace Analysis platinum-iridium. For concentrated acids, TFA, peroxides, THF and other diificult solvents, choose the Dispensette S Organic.
Choose from two different volume adjust mechanisms or fixed volume models.  Analog adjustable models feature a sliding pointer with scalloped inner track, well suited for rapid volume changes from one end of the range to the other.  Digital adjustable models are excellent for highly reproducible volume settings.  All are available with or without a recirculation valve that allows easy priming without 'spitting' or wasting of reagent. Many accessories, including adapters for nearly any unpressurized container are available.  
All Dispensette S bottle-top dispensers are supplied with performance certificate, telescoping filling tube, recirculation valve and recirculation tube (if specified), valve mounting tool and a selection of polypropylene adapters. Bottle not included.
Specifications for BRAND Dispensette S & Dispensette S Organic 
For Models >1mL                            For 0.1-1mL Adjustable/1mL Fixed
 Accuracy  ±0.5%    ±0.6%
Precision ±0.1%    ±0.2%