Item #DescriptionCase Pack
 4025P-631250µL Polypropylene Big Mouth Conical Limited Volume Insert, Precision-Formed Interior, No Spring1000 pieces
 4025P-631BK250µL Black Polypropylene Big Mouth Conical Limited Volume Insert, Precision-Formed Interior, No Spring1000 pieces
 4025PBS-631250µL Polypropylene Big Mouth Conical Limited Volume Insert, Precision-Formed Interior, w/Bottom Spring1000 pieces
 425PBS-631BK250µL Black Polypropylene Big Mouth Conical Limited Volume Insert, Precision-Formed Interior, w/Bottom Spring1000 pieces

Due to the conical design of the snap plug, limited volume inserts used in the shell vial stay centered and straight allowing for easy sample evacuation.  Limited volume inserts are available silanized or precleaned.