[PREMIUM MATERIAL] Made of high-quality metal with excellent rust-resistant and anti-leaking performance. The hose is constructed from rubber, offering good pressure resistance and safe operation. Both components of the kit are made of corrosion-resistant metal that will not wear out or rust over time, and the anti-leaking design ensures reliable performance. [PIERCING VALVE KITS] BPV-31 refrigerator tap valve compatible with 1/4 inch, 5/16 inch, and 3/8 inch outside diameter pipes. Replacement for AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31. A practical and convenient kit for everyday use. Each kit includes 1 piercing valve, 1 hex key, and 2 adapters. [RH R134A SEALING ADAPTER] The R134a sealing adapter allows connection to refrigerant charging hoses and is compatible with R134a sealing cans. Features a male end to connect to the R134a can tap and a female end to connect to sealing cans. [REFRIGERATOR FREON RECHARGE HOSE WITH GAUGE] One side of the refrigerant charging hose features a piercing R134a can tap for direct connection to puncture refrigerant cans. The other side has a 1/4 inch female port to connect to the refrigerator's male port. Includes a color-coded dial with a Fahrenheit gauge that provides scale readings for R134, R12, and R22, as indicated on the gauge. [WIDELY APPLICATION] This refrigerator recharge kit is commonly used for air conditioning refrigerants with R-134a, R-12, and R-22 types of freon. With the included R134a sealing adapter, the kit is compatible with both piercing and sealing R134a cans, maximizing versatility and meeting a wide range of service needs. Color: Blue + Silver Material: Rubber + Metal Package Contents: 1 x R134a freon recharge hose with gauge 2 x BPV-31 piercing tap valve 1 x RH R134a sealing adapter Note: Light and display differences may cause slight variations in color between the product and the image. Measurement may vary by +/- 1-3 cm.