250µL Glass Big Mouth Conical Limited Volume Insert, 6x29mm, Precision-Formed Mandrel Interior, w/Bottom Spring 4025BS-629

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.