The Mastercool 66773 Manifold Gauge Set is a professional-grade service tool engineered for automotive A/C systems using R12 and R134A refrigerants. Designed to support accurate diagnostics and efficient service, this gauge set allows technicians to monitor both high- and low-side pressures during charging, evacuation, and troubleshooting.
Featuring clearly marked gauges for R12 and R134A, the 66773 helps ensure proper refrigerant handling and system performance. Its durable construction supports repeated use in demanding shop and field environments, while standard service connections allow compatibility with common automotive A/C service equipment.
Whether performing routine maintenance or diagnosing system issues, the Mastercool 66773 delivers dependable performance and clear pressure readings technicians can trust.
Key Features
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Manifold gauge set for R12 and R134A systems
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Designed for automotive A/C service
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Accurate high- and low-side pressure monitoring
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Clearly marked gauges for refrigerant identification
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Durable construction for professional use
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Compatible with standard A/C service hoses and fittings
Applications
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Automotive A/C diagnostics
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Refrigerant charging and recovery preparation
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System evacuation and pressure testing
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Professional shop and mobile service use
Specifications
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Manufacturer: Mastercool
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Part Number: 66773
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Product Type: Manifold gauge set
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Compatible Refrigerants: R12, R134A
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Application: Automotive air conditioning service
Compatibility
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Automotive A/C systems using R12 or R134A
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Standard manifold service hoses
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Automotive A/C recovery and charging equipment
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