Nalgene™ HDPE Vacuum Check Valve and Positive Connector

Nalgene™ HDPE Vacuum Check Valve and Positive ConnectorPrevent back pressure with aspirator-type vacuum pumps using the Thermo Scientific™ Nalgene™ Vacuum Check Valve with Pressure Connector.Description: Vacuum Check Valve and positive connectorDiameter (English) Inner: 1/4 in. to 5/16 in.Diameter (Metric) Inner: 6.35 mm to 7.94 mmOverall Length (English): 0.75 in.Overall Length (Metric): 19.05 mmType: Vacuum Check Valve, ConnectorPackaging Quantity: 6Vacuum Level: 10 in. Hg, 28 in. HgUnit Size: Case of 72 more