DWK Life Sciences 749560-0500 Microtb .5ml Polypr Pk1000, KIMBLE®, 1000/Unit - 09-1874 | Genesee Scientific DWK Life Sciences 749560-0500 Microtb .5ml Polypr Pk1000, KIMBLE®, 1000/Unit - 09-1874 | Genesee Scientific