Item # Description Case Pack
  4005BS-625 50µL Glass Big Mouth Conical Limited Volume Insert, Precision-Formed Mandrel Interior, with Bottom Spring  100 pieces View Product
  4005BS-625Z 50µL Glass Big Mouth Conical Limited Volume Insert, Precision-Formed Mandrel Interior, with Bottom Spring, Silanized  100 pieces
  401TF-529 100µL Glass Conical Limited Volume Insert, Precision-Formed Mandrel Interior, with Glass Flange  100 pieces View Product
  401TS-529 100µL Glass Conical Limited Volume Insert, Precision-Formed Mandrel Interior, with Patented Top Spring™  100 pieces View Product
  4025-629 250µL Glass Big Mouth Conical Limited Volume Insert, Precision-Formed Mandrel Interior, No Spring  100 pieces View Product
  4025-629Z 250µL Glass Big Mouth Conical Limited Volume Insert, Precision-Formed Mandrel Interior, No Spring, Silanized  100 pieces View Product
  4025BS-629 250µL Glass Big Mouth Conical Limited Volume Insert, Precision-Formed Mandrel Interior, with Bottom Spring  100 pieces View Product
  4025BS-629Z 250µL Glass Big Mouth Conical Limited Volume Insert, Precision-Formed Mandrel Interior, with Bottom Spring, Silanized  100 pieces View Product
  4025BSFT-629 250µL Glass Big Mouth Conical Limited Volume Insert, Pulled Point Interior, with Bottom Spring 1000 pieces View Product
  4025FT-631 250µL Glass Big Mouth Conical Limited Volume Insert, Pulled Point Interior, No Spring 1000 pieces View Product

Inserts are available preassembled with a polymer bottom spring or 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.  Limited volume inserts are available silanized or precleaned.