Boltigen R1234yf to R134a Adapter | High & Low Pressure Quick Couplers for R134a to R1234yf Conversion

Meet the Boltigen R1234yf to R134a Adapter kit, a practical bridge between older R134a systems and newer R1234yf recharge protocols. Thoughtfully machined in brass for durability, this pair of quick couplers is designed to mount on both the high and low pressure sides, letting you repurpose existing hoses and gauges rather than swapping entire kits.

Designed for real-world scenarios, the kit supports direct use with R134a quick couplers for conversion to R1234yf, and it also works with popular three-way R1234yf/R134a AC manifold gauge sets. This flexibility helps keep service workflows efficient, whether you're diagnosing a compressor, recharging a system, or checking for leaks.

Seal and durability you can rely on

The assembly features a ball latch design and a green rubber seal ring that work together to help maintain a solid seal during connection and disconnection. The brass construction adds strength and resistance to wear in busy workshops or on the road.

Versatile use cases

Beyond standard charging, the low-side quick coupler can be paired with refrigerator Freon recharge hoses to convert refrigerator R134a charging lines to auto R1234yf lines. It also works with automotive R134a refrigerant hoses when you need to perform a cross-system service. An additional application includes use with AC oil injectors in compatible setups.

What’s included and how it helps

The kit includes two color-coded couplers: a red high-pressure quick coupler and a blue low-pressure quick coupler. These two pieces give you the core tools to complete conversions and service tasks without swapping components from other brands.

• Wide compatibility across R134a and R1234yf systems and gauge sets
• Secure sealing with ball latch and green seal ring for repeated use
• Brass construction for durability in demanding workshop conditions
• Directly usable with refrigerant hoses and charging equipment during conversions

Note that performance can vary with system configurations and environmental conditions. The Boltigen adapter kit is designed to expand your options and reduce the need for multiple adapters, helping you approach service tasks with greater flexibility and fewer hassles.