250µL Glass Big Mouth Conical LVI, 6x31mm, Precision-Formed Mandrel Interior, w/Glass Flange for 12x32mm Step Vial 4025GF-631

Conical Glass Inserts. nserts are available preassembled with a polymer bottom springor patented Top Spring™. The polymer spring acts as a shock absorber that protects against breakage if the needle bottoms out. The conical design permits complete sample removal.