ITEM NAME:1/4",5/16",3/8"od Line Tap Access Piercing Valve AC Service 1/4 Useful Sup S6N0 Description: 100% Brand New and High quality. Model: 1/4".5/16".3/8" Purpose: Used for refrigeratory air.The inner perforated valve consists of 1 perforated valve, 1 hexagonal wrench and 2 adapters. Flow pressure: standard. Model: 1/4".5/16".3/8". Purpose: Used for refrigeratory air conditioning maintenance.