Fixed Volume Dispenser, 20 μL, Drummond (CAT#: AM-LH-2855-TT)

The has custom-made gasket, allowing fractional deliveries on all units. There are borosilicate glass holes, all of which have stainless steel plunger and polytetrafluoroethylene needle (25 μ L or larger).
When collecting samples, fully press the plunger of the distributor, immerse the tip into the solution, and then slowly release the plunger. The exterior of the glass bore should be wiped free of any excess sample with a wiper, being careful to avoid drawing any sample from the end of the capillary. Then press the plunger of the distributor completely to discharge the sample. Contact the tip of the tube with the side of the receiving container or rotate the tip in the diluent to take out the entire sample.

Volume: 20 μL
Autoclavable: Yes
Speed Control: No
Programmable: No

Total volume accuracy ± 1% (full volume)
1000 μ l reusable Kit
Model 390 precision molded plastic hole
Model 105 will provide 1 to 5 μL
Borosilicate glass hole with stainless steel plunger