[Wide Compatibility]These piercing valves for refrigerator can fit for: BPV31 1/4 inch, 5/16 inch, 3/8 inch outside diameter refrigerator pipes to meet maintenance staff repair needs as much as possible [Easy to Use]It is so easy for maintenance staff to install and use the refrigerator line tap valve with the included hex key and adapters [BPV-31 Piercing Valve Kit]The BPV31 fridge piercing valve kit totally include 4 packs refrigerator line tap valves, to meet your daily refrigerator repair need. Each bpv-31 piercing valve kit including 1 piercing valve, 1 hex key, 2 adapters [BPV31D Refrigerator Tap Valve Set] The refrigerator piercing tap valve can replace the part model of AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31 [Premium Metal Material]These refrigerator piercing valves are made of solid - metal which makes the BPV31 fridge piercing valve more for longtime use and ' t wear out or rust over time