ROBIN AIR LOW SIDE BLUE SERVICE COUPLER (FOR R-134A A/C)
R-134a Low Side Service Coupler (18190A) - Secure Connection Technology
Professional Automotive A/C Service Tool
The Robinair 18190A R-134a low side service coupler connects to Enviro-Guard hoses for safe access to automotive A/C service ports. Features 6-ball grip technology providing 50% more stability than standard designs.
Key Features & Benefits
Perfect Applications
This automotive service coupler is ideal when you need:
- R-134a refrigerant system service and maintenance.
- Low-side pressure port connections on passenger vehicles.
- Professional A/C system diagnostics and repairs.
- Retrofit installations in tight engine compartments.
- Commercial automotive service operations.
Technical Specifications
| Specification | Details |
|---|---|
| Model Number | 18190A |
| Design | 90 Degree Coupler |
| Color | Blue |
| Refrigerant Type | R-134a |
| Connection Type | Low Side Service Port |
| Grip Mechanism | Six-Ball Coupler |
| Application | Automotive A/C Systems |
| Compatibility | R-134a low-side service ports / Enviro-Guard hoses |
| Quantity | 1 coupler per order |
Get Professional A/C Service Results
Upgrade your automotive service capabilities with genuine Robinair quality. This R-134a service coupler delivers the reliability and safety features professional technicians demand.
Add to cart now for fast shipping and expert automotive service support.
Frequently Asked Questions
What makes this coupler different from standard 4-ball designs?
The 6-ball mechanism provides 50% more grip points for enhanced stability and reduced slippage during high-pressure refrigerant service operations. This design improvement ensures more secure connections when working with automotive R-134a systems compared to traditional four-ball couplers. The additional grip points distribute connection force more evenly across the service port fitting.
Is this compatible with all R-134a vehicle systems?
Yes, this low side coupler connects to standard R-134a service ports found on passenger cars, trucks, and commercial vehicles from the 1990s onward. The universal design works with most automotive A/C systems that use R-134a refrigerant. It fits both domestic and import vehicles with standard low-side service port configurations.
Does this work with other brands of A/C service equipment?
This coupler is designed specifically for Robinair Enviro-Guard hoses but may work with compatible quick-connect systems from other manufacturers. However, for optimal performance and safety, Robinair recommends using genuine parts together as a complete system. Cross-compatibility depends on matching connection specifications and safety requirements of the host equipment.
What safety features does this service coupler include?
It includes an integral safety sleeve that prevents refrigerant loss and protects against injury if accidentally disconnected under system pressure. This safety mechanism automatically seals the connection when pressure is detected. The sleeve design meets professional automotive service safety standards and helps prevent accidental exposure to high-pressure refrigerant during A/C system service operations.
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