Rubber/Silicon Rubber Bulb Pipette Filler, For Chemical Laboratory, Capacity: 25 Ml & 50 Ml

PIPETTE FILLER: These bulb type pipette fillers are designed for one hand operation. pipette e fillers improve worker safety by eliminating mouth pipetting and handling of hazardous materials. Users can control air evacuate????on, 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. Pipe filler with 3 valves: Valve A: Release air valve S: Filling valve E: Delivery size : 50ml