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

Inserts 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.