Check the listing for details. BPV31 Bullet Piercing Tap Valve Kit Refrigerator Fluoridation w/ Pressure Gauge. Color: Blue, Silver, Glod, Condition: New. Listed at 18.31 USD. Item number:3649Product description: Type Bullet Piercing Tap Valve Kit Model AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31 Material Rubber + Aluminum Alloy Color Blue, Silver, Glod Size Pressure Gauge Size: 7.11cm (2.8in) Product Size Overall Length: 48cm (19in) Features Durable and practical, high-pressure resistance Suitable for Home Refrigerator Freezer Fluoridation Application Adult Home Kitchen Repair ToolFeatures: Material: The suit is made of high-quality rubber and aluminum alloy material, durable and practical, high-pressure resistance, and not easy to rust. Easy to Use: Built-in safety valve prevents accidental refrigerant discharge, 90-degree push-on and locking connectors with auto shut-off, includes a pressure gauge for easy viewing during use, compatible with 1/4" OD, 5/16 inch, 3/8 inch pipe. Easy to Install: just install it with a hexagon wrench. Replacement Part Numbers: AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31.Package included: 1 x BPV31 Refrigerator Freezer Fluoridation Kit