Mastercool 89660-UV Automotive R134a 2-Way Manifold Gauge Set with Mini Dye Injector – U.S. Designed, Assembled, and Tested – Includes 60" Hoses and Manual Couplers — Open-Box, 6% Off

✅ 100% U.S. Designed, Assembled & Tested – Specially engineered for R134a automotive A/C systems, this professional-grade manifold gauge set ensures long-lasting reliability and precision, making it ideal for frequent use by technicians and DIYers.

✅ Heavy-Duty Aluminum Block Construction – Built with a rugged extruded aluminum body, featuring free-floating piston valves that reduce O-ring wear, ensuring extended durability and smooth operation.

✅ Precision 2.5" Recalibrateable Gauges – Silicone-dampened gauges minimize needle flutter, providing stable and highly accurate pressure readings for reliable diagnostics and A/C system performance.

✅ Integrated Mini Dye Injector for Fast Leak Detection – Built-in mini UV dye injector supports up to 10 applications, allowing technicians to quickly pinpoint refrigerant leaks, saving time and effort in the diagnostic process.

✅ Complete Hose Set & Manual R134a Couplers – Includes three 60” SAE-approved nylon barrier hoses, along with premium manual R134a couplers, ensuring secure, leak-free connections for efficient refrigerant recovery and charging.

✅ Extra-Large Sight Glass for Quick Refrigerant Flow Checks – Equipped with a high-visibility sight glass, allowing instant verification of refrigerant movement, making diagnostics and system servicing faster and more efficient.

✅ Convenient Hose Holder for Easy Organization – Built-in hose holder helps keep your work area clutter-free, ensuring quick access and tangle-free storage for your hoses.

✅ Durable Blow-Molded Carrying Case for Protection & Portability – Includes a heavy-duty, impact-resistant carrying case, ensuring organized storage and easy transport, making it perfect for on-the-go technicians and mobile A/C service professionals.