These bulb-type pipette fillers are designed for one-hand operation. Pipette fillers improve worker safety by eliminating mouth pipetting and handling hazardous materials. Users can control air evacuation, liquid uptake, and liquid dispensing with three valves containing chemically resistant stainless steel balls. Pinching or releasing valves provides smooth liquid flow. Fits standard-size pipettes.
Pipette filler with 3 valves:
Valve A: Release air
Valve S: Filling
Valve E: Delivery