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[Convert R12 R22 to R134a] The Boltigen AC fitting port retrofit adapter can help you replace your old r12 r22 service port with r134a service port to meet your need. Ideal air conditioning conversion adapter kit.[Dimension] The Bcltigen Low/High pressure side retrofit adapters win convert your old 1/4“ SAE or 7/16'-20 UNF R12 R22 charging port and make it accept the R134a quick disconnect nose. Low Side, 1/4" (7/16- 20) x 13 mm (Blue). High Side, 1/4“ <7/16"- 20) x 16 mm (Red).[Excellent Sealing] The Boltigen r12 to r134a adapters built-in green O-rings, and Valve Core, for ensuring a complete hermetic seal. And the extral valve core removal tool can help you install or remove valve core according to your needs[Brass Material] The Boltigen r12 to r134a retrofit adapters are made of high qualrty brass.surface chrome plating with resistant to corrosion, and durable advantages

[R134a Quick Adapter] This set cf two R134a quick couplers works perfectly with R134a service ports; provided adapters also ensure compatibility with 1/4-inch male flare fittings. 6-ball design of these high and low-pressure R134a quick couplers also provides superior protection against wasteful refrigerant leakage.[R1234YF to R134a Adapter] R1234YF Low Side Quick Coupler: Low side R1234yf coupler 14 mm female x low pressure 13mm R134A quick coupler. R1234YF High Side Quick Coupler: High side R1234yf coupler 17 mm female x High pressure 16mm R134A quick coupler.[No -eakage] The combination of the ball lock design and rubber seal provides excellent sealing performance. AC gauge adapter set with automatic closing function, easier and more convenient to disassemole and install.[Material] The quick coupler is typically constructed using high-quality brass or aluminum materials to ensure durability and resistance to corrosion.

AC U CHARGE HOSE: R134A charging hcse uses rubber nylon resin material hoses, featured with anti-corrosion, lev/ fluid resistance, high searing pressure, ensure durability and good air sealing. Max working pressure is 500PSI and burst pressure is upto 2500PSI. Total length is 19“, ideal for easy to reach AC suction service port, for example the AC connector is right on top of your engine compartment. REFRIGERANT CHARGING GAUGE: Right in the middle cf the refrigerant recharge hcse, there is a AC low pressure gauge with scale range 0-100PSI / 0-7kg/cm2. Equipped with metal scale plate, color coded scale range to mark pressure state with LOW FULL ALERT DANGER. Easy to monitor the automotive air conditioning low pressure side pressure, to insure a accurate R134A recharge. METAL OUICK COUPLER AND CAN TAP: Ore side is metal quick interface coupler with accurate snap lock and anti-slip grip ring, easy to connect and disconnect

FiTS R134a & 1 PORTS: This set of two R134a quick couplers works perfectly with R13£a service ports; provided adapters also ensure compatibility with 1/4-inch male flare fittings. EASY OPERATION: Constructed with accurate snap lock and knurled grip ring, allow for sure handling & user-fnendly nonslip performance even while wearing work gloves, and opening Schrader valves using their top control knobs, closure and disconnection is just as fast and simple. LEAK-FREE: These 5 and 6-oall quick couplers snap down onto R134 coolant ports, all connection parts adopt precise fire thread design, and the interface is also equipped with high-quality thick rubber seals to ensures the gas tightness with no leak. LONG SERVICE LIFE: The aluminum and nickel-plated bronze construction provides superior strength alongside enduring resistance to wear and corrosion, R134a adapters- premium threading and materials ensure years of helpful use.