[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, ensuring long-lasting use and reliable sealing 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 refrigerator charging hoses and is compatible with R134a sealing cans. Male end connects to the R134a can tap; female end connects 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 refrigerators male port. The color-coded dials with Fahrenheit gauge provide scale readings for R134, R12, and R22 as indicated on the gauge. [WIDELY APPLICATION] This refrigerator recharge kit is commonly used for air conditioning systems with R-134a, R-12, and R-22 type refrigerants. With the R134a sealing adapter, this kit is compatible with both piercing R134a cans and sealed cans, maximizing versatility to meet various needs. Colour: 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 Only the above package content is included; other items are not included. Note: Light and display differences may cause slight variations in color between the image and the actual item. Measurement allowance is +/- 1-3 cm.