Mastercool 86972 R134a 4-Way Aluminum Manifold Gauge Set with Manual Couplers, 3-1/8" Gauges, and 72" Hoses - U.S. Assembled & Tested

Mastercool 86972 - Professional 4-Way Aluminum Manifold Gauge Set for R134aPrecision, Durability, and Performance for Automotive A/C TechniciansMastercool is a trusted leader in **professional-grade A/C manifold gauge sets**, delivering **precision, durability, and top-tier performance**. Every manifold is constructed from **high-quality materials** and **engineered for long-lasting reliability**, ensuring it meets the **rigorous demands of automotive A/C servicing**.✔ Built to Last – Engineered for PerformanceSolid Extruded Aluminum Body – Provides exceptional durability and ensures long-term **reliability under heavy use**.Stainless Steel Ball Valve Design – **Quarter-turn operation** allows for **smooth, precise refrigerant flow control**, enhancing **efficiency and ease of use**.Extra-Large Sight Glass – Enables **clear, visual refrigerant inspection**, allowing for **quick and easy system diagnostics**.Large 3-1/8" Gauges (80mm) – Features **PSI/KPA/˚F readings**, providing **accurate pressure monitoring** for **R134a refrigerant applications**.Silicone-Dampened Gauges – Reduces **needle flutter**, ensuring **smooth, stable readings** for more **precise system analysis**.Field Recalibration Capability – Gauges can be **easily recalibrated on-site**, maintaining **accuracy and reliability over time**.✔ Complete Hose & Coupler Set for Maximum VersatilityThe Mastercool 86972 includes a full set of **high-pressure 72” hoses** for **R134a refrigerant servicing**:Red & Blue Hoses – **14mm-M connections** for secure and reliable attachment.Yellow Hose – **1/2" ACME-F with auto shut-off valve**, designed for **leak-free refrigerant handling**.Black Conversion Hose – Ensures **maximum compatibility** across various service requirements.Premium Manual Couplers – Provide **secure, leak-proof connections**, ensuring **efficiency and durability in professional applications**.✔ Professional-Grade Storage & PortabilityFor added convenience, the **entire set is packaged in a durable blow-molded carrying case**, keeping your tools **organized, secure, and easy to transport**.Upgrade your automotive A/C servicing with the Mastercool 86972 – Engineered for Precision, Built for Performance!

• ✅ 100% U.S. Designed, Assembled & Tested – Engineered for superior performance and durability, this professional-grade 4-way manifold gauge set is designed for R134a automotive A/C applications.
• ✅ Heavy-Duty Aluminum Block Construction – Built with a solid extruded aluminum body, providing exceptional durability and long-lasting reliability, even under heavy, continuous use.
• ✅ Stainless Steel Ball Valve Design – Quick quarter-turn operation allows for smooth, precise control of refrigerant flow, ensuring efficiency and accuracy in professional A/C servicing.
• ✅ Precision 3-1/8" Recalibrateable Gauges – Silicone-dampened gauges reduce needle flutter, delivering accurate, stable pressure readings for consistent system diagnostics.
• ✅ Complete Hose & Manual Coupler Set – Includes four 72” high-pressure hoses: Red & Blue Hoses – 14mm-M connections for secure attachment Yellow Hose – 1/2" ACME-F with auto shut-off valve for leak-free performance Black Conversion Hose – Ensures versatility in refrigerant handling Premium Manual Couplers – Provides a secure, leak-proof connection, improving efficiency and reliability in every service.