ITEM NAME:BPV-31 3in1 1/4",5/16",3/8"od Line Tap Access Piercing Valve Service AC X1K Z4P2 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.