Flat bottom glass insert 400ul, 500

250µL Black PP Big Mouth Conical Insert, no spring, pk/100 (min. order 10pk)

100µL Glass Conical Insert,w/Plastic Flange,pk/100 (min.order 10pk)

Silanized - 250µL Glass Big Mouth Insert, no spring, pk/100 (min.order 10pk)