DWK Life Sciences W242431-A 20 mm Extend Control Dpr Tip, LLDPE Pnk, WHEATON®, 1000/Unit - 09-1516 | Genesee Scientific DWK Life Sciences W242431-A 20 mm Extend Control Dpr Tip, LLDPE Pnk, WHEATON®, 1000/Unit - 09-1516 | Genesee Scientific