Male Prest-O-Lite Hard Nose 9/16-18 Female Left-Hand ThreadThe Male Prest O Lite Hard Nose 9 16 18 Female Left Hand Thread is a propane adapter designed to connect POL (Prest O Lite) propane tanks to gas regulators, hoses, or appliances with an LH female connection. The hard nose POL connection ensures a metal to metal gas tight seal, eliminating the need for a rubber gasket. The left hand (LH) threading on the female end is a standard for propane and fuel gas fittings. Specification Value TYPE Prest O Lite