R134a Freon Charging Kit with Pressure Gauge and Valve. R134a Refrigerant Recharge Hose Kit with Gauge and Piercing Valve. Condition: New. Origin: China. Made of metal with rust-resistant and anti-leaking performance. The hose is made of rubber with good pressure resistance for safe use. The kit is made of corrosion-resistant metal that will not wear out or rust over time. Piercing Valve Kit BPV-31 Refrigerator Tap Valve is compatible with one quarter inch, five sixteenths inch, and three eighths inch outside diameter pipes. It is a replacement for AP4502525, BPV31D, GPV14, GPV31, GPV38, and GPV56. Each kit includes one piercing valve, one hex key, and two adapters. Through the R134a self-sealing adapter, the R134a can tap off the refrigerator charging hose is compatible with R134a self-sealing cans. Male end connects to the R134a can tap, the female end connects to self-sealing cans. One side of the refrigerant charging hose is a piercing R134a can tap to directly connect puncture refrigerant cans. The other side is a one quarter SAE female port to connect to a refrigerator male port. The colored dials with gauge has scale readings for R134, R12, and R22. This recharge kit is used for home condition refrigerant systems with R-134a, R-12, and R-22 types of Freon. With the R134a self sealing adapter, this refrigerator Freon recharge kit is compatible with both piercing R134a cans and self sealing cans. Colour: blue and silver. Material: rubber and metal. Package Contents: One R134a Freon recharge hose with gauge. Two BPV-31 piercing tap valves. One RH R134a self-sealing adapter. Only the above package content is included. Other products are not included.