Item #DescriptionCase Pack
 4005BS-62550µL Glass Big Mouth Conical Limited Volume Insert, Precision-Formed Mandrel Interior, with Bottom Spring 100 pieces
 4005BS-625Z50µL Glass Big Mouth Conical Limited Volume Insert, Precision-Formed Mandrel Interior, with Bottom Spring, Silanized 100 pieces 
 401TF-529100µL Glass Conical Limited Volume Insert, Precision-Formed Mandrel Interior, with Glass Flange 100 pieces
 401TS-529100µL Glass Conical Limited Volume Insert, Precision-Formed Mandrel Interior, with Patented Top Spring™ 100 pieces
 4025-629250µL Glass Big Mouth Conical Limited Volume Insert, Precision-Formed Mandrel Interior, No Spring 100 pieces
 4025-629Z250µL Glass Big Mouth Conical Limited Volume Insert, Precision-Formed Mandrel Interior, No Spring, Silanized 100 pieces
 4025BS-629250µL Glass Big Mouth Conical Limited Volume Insert, Precision-Formed Mandrel Interior, with Bottom Spring 100 pieces
 4025BS-629Z250µL Glass Big Mouth Conical Limited Volume Insert, Precision-Formed Mandrel Interior, with Bottom Spring, Silanized 100 pieces
 4025BSFT-629250µL Glass Big Mouth Conical Limited Volume Insert, Pulled Point Interior, with Bottom Spring1000 pieces
 4025FT-631250µL Glass Big Mouth Conical Limited Volume Insert, Pulled Point Interior, No Spring1000 pieces

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.