Dispenser, bottle-top, variable volume, digital, 1.0-5.0 mL

Wheaton Variable Volume Bottle-Top Dispensers screw directly onto reagent bottles to deliver solution volumes within tightest tolerances. Fixed selector steps permanently calibrated at factory. Manufactured to provide inert fluid path to withstand acids, bases, and organic solvents. PTFE coating prevents plunger from freezing when alkaline solutions are dispensed. Dispenser can be autoclaved at 121°C. Fits reservoirs with 33mm screw neck finish. Bottle neck adapters provided for 28, 38, and 45mm bottle neck finishes.