- The R134A AC refrigerant charging hose set with pressure gauge is ideal for both residential cooling systems and R134A automotive applications. It features a capillary valve compatible with both the R134A puncture type and self-sealing type. - The BPV-31 plate valve is designed to fit pipes with outer diameters of 1/4, 5/16, and 3/8 inches. It is interchangeable with part numbers AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, and MPV31. Made from durable metal, this component ensures longevity and resistance to corrosion, making it an essential replacement part. - One end of the hose is equipped with an R134A puncture valve for direct connection to the puncture refrigerant canister. The opposite end features a 1/4 SAE internal thread for easy attachment to the external thread of refrigerators. The color-coded gauge displays measurements in Fahrenheit and R134A for improved readability. Use Scenarios: - Perfect for DIY enthusiasts handling refrigerant tasks at home or in their vehicles, ensuring efficient and accurate charging. - Essential for professional technicians performing maintenance on cooling systems, providing reliable connections and durability. - Ideal for quick refrigerant checks and top-ups in automotive environments, ensuring optimal performance and system efficiency.