[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. Replaces AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31. Each kit includes 1 piercing valve, 1 hex key, and 2 adapters for practical and convenient use. [RH R134a SEAlING ADAPTER] The R134a sealing adapter allows connection between the refrigerator charging hose and 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 refrigerator's male port. The gauge includes color-coded dials with scale readings for R134, R12, and R22 as indicated. [WIDELY APPLICATION] This refrigerator recharge kit is designed for use with air conditioning refrigerants including R-134a, R-12, and R-22. With the included R134a sealing adapter, the kit is compatible with both piercing and sealing R134a cans, providing versatile functionality to meet various service 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 Note: Light and display differences may cause slight variations in color between the image and actual item. Measurement error allowance is +/- 1-3 cm.