With two PTFE O-rings for positive sealing. Only for Nalgene™ tanks up to 100 gals with factory-welded threaded boss. Has 1-1/8" - 12 straight female threads. An upgrade replacement for Cat.No. 7-96423.
CAUTION: Plastic tanks are generally subject to more severe conditions than plastic labware; exposure is constant, stresses are greater and different classes and concentrations of chemicals are involved. Please pay special attention to chemical compatibility.