You're diagnosing an air conditioning system, and the old couplers leak refrigerant or refuse to lock onto the port—wasting time and risking your safety. This R134A quick coupler set changes that. The high‑ and low‑side connectors share the same design, so you don't have to hunt for the right adapter. The locking sleeve prevents accidental disconnection and cover you from escaping coolant. A 1/4” flare male thread fits most service hoses, and the robust metal body handles working pressures without failing. Use it for recharging, evacuating, or pressure testing automotive AC systems. A reliable, safe tool that speeds up your workflow and protects your skin from freeze burns.

Spec:

Description:
This set of R134A air conditioning (A/C) quick couplers allow you to connect multiple hoses in the automotive industry / car R134A air conditioning system during diagnosis, charging, or evacuation. High and low connectors are included. Its safe design can effectively prevent injury and loss of coolant.
Features:
Sleeve can protect against injury and loss of coolant.
Coupling interface fits with service R134, 1/4" flare male.
Quick and easy to connect/disconnect with high movement.
Reliable and safe for valve access systems even at working pressure.
Side mounting for A/C gauge set(R-134A) type.
Specification:
Connector: 90°
Material: Brass
Compatibility: R134
Low Side Quick Coupler: Blue
High Side Quick Coupler: Red
Application: Car Add Fluorine
Manifold Hose Connections on Both Adapters: 1/4"
Inner Diameter(Blue): Approx. 14mm / 0.55inch
Inner Diameter(Red): Approx. 17mm / 0.67inch
Package Weight: Approx. 366g
Package Included:
1 x Blue Low Side Quick Coupler(With Cap)
1 x Red High Side Quick Coupler(With Cap)
Note:
Please allow small error due to manual measurement. Thanks for your understanding.
Please note that the new type and old type of this product