Mastercool 84661-UV R134a 2-Way Brass Manifold Gauge Set Kit with Manual Couplers, 3 × 60″ Hoses, 2½″ Silicone-Dampened Gauges & 10-Application Mini Dye Injector for Automotive A/C Service

OverviewThe Mastercool 84661-UV R134a 2-Way Brass Manifold Gauge Set is designed for professional automotive A/C diagnostics, charging, and service. Built with a heavy-duty forged brass manifold body and precision-machined components, this gauge set delivers durability and dependable pressure monitoring for automotive technicians.This complete service kit includes manual R134a couplers, three 60-inch service hoses, and a compact mini dye injector that allows technicians to introduce UV dye into the system to assist with leak detection diagnostics.Mastercool manifold gauge sets are engineered using high-quality materials to provide reliable performance in demanding shop environments.Key FeaturesHeavy-duty forged brass manifold body for durabilityFree-floating piston valves reduce O-ring wearLarge angled metal handles for easier operationSilicone dampened gauges stabilize needle movementField-recalibratable gauges maintain accuracyIntegrated hose holder for convenient storageMini dye injector supports up to 10 dye applicationsWhy MastercoolFor more than 40 years, Mastercool has been manufacturing professional HVAC and automotive A/C service tools. Our products are designed for durability, accuracy, and long-term reliability in professional service environments.Technical SpecificationsRefrigerant compatibility: R134aManifold type: 2-way brass manifoldGauge size: 2½ inchesHoses included: Three 60-inch hosesBlue hose connection: 14 mm-MRed hose connection: 14 mm-MYellow hose connection: 1/2" ACME-F with auto shut-off valveManual R134a couplers includedMini dye injector capacity: 10 applications

• ✔️ COMPLETE R134a A/C SERVICE KIT – Includes 2-way brass manifold gauge set, three 60″ service hoses, manual R134a couplers, and a 10-application mini dye injector for charging, diagnostics, and leak detection.
• ✔️ HEAVY-DUTY FORGED BRASS MANIFOLD – Precision machined brass body delivers durability and reliability for demanding automotive A/C service environments.
• ✔️ FREE-FLOATING PISTON VALVE DESIGN – Reduces internal O-ring wear and helps maintain smoother valve operation for longer service life.
• ✔️ LARGE 2½″ SILICONE-DAMPENED GAUGES – Dampening stabilizes needle movement to provide smoother, easier-to-read pressure measurements.
• ✔️ FIELD-RECALIBRATABLE GAUGES – Gauges can be recalibrated directly in the field to maintain measurement accuracy over time.
• ✔️ LARGE ANGLED METAL HANDLES – Durable all-metal handles are ergonomically angled to improve grip and control during service procedures.
• ✔️ PRE-FILLED UV DYE INJECTOR – 10 APPLICATIONS INCLUDED – Mini injector comes pre-filled with fluorescent dye and allows up to 10 leak detection applications, helping technicians quickly locate refrigerant leaks in automotive A/C systems.
• ✔️ INTEGRATED HOSE HOLDER – Built-in hose holder keeps hoses organized and reduces clutter during storage.
• ✔️ TRUSTED MASTERCOOL QUALITY – Mastercool has manufactured professional HVAC and automotive A/C service tools for over 40 years and is trusted by technicians worldwide.