Heathrow Scientific Rubber Pipet Filler - Red

Heathrow Scientific The Natural Rubber Pipette Filler Is Great For Use In One-Handed Operation. Efficient One-Handed Operation Control Air-Evacuation, Liquid Uptake, And Liquid Dispensing With Three Valves Each Containing Chemical-Resistant Stainless Steel Balls In Valves Pinch Release-Valve For Smooth Liquid Flow Safe For Pipetting Of Caustics And Does Not Contain Carbon Black And Will Not Smudge - HEATH