DWK Life Sciences 242431 20 mm Extend Control Dpr Tip, LLDPE Pnk, WHEATON®, 100/Unit - 09-1515 | Genesee Scientific DWK Life Sciences 242431 20 mm Extend Control Dpr Tip, LLDPE Pnk, WHEATON®, 100/Unit - 09-1515 | Genesee Scientific