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Standard Thread Size: Standard 1/4 inch female flare fittings with a valve core depressor and 45°bend on one end for convenient access to the system. The coupler nuts are deeply knurled for quick finger-tightening
Length & Colors: Extra long Hoses 72". Color coded in red, yellow and blue
Working Pressure Range: 600PSI working pressure and 3000PSI burst pressure. A strong six-sided crimp provides a reliable connection between the hose and barb even at maximum pressure. Providing you safety and convenience to test or recharge many HVAC system
Applicable Refrigerant Type: Professional AC gauges hose suitable for standard refrigerants R12 R22 R134A 404 502 to vehicle or home air-conditioning with highly working performance
High-Quality Materials: HVAC hoses are made of high-quality brass alloy and rubber, easy to operate and install, strong sealing for durability and safety. Necessary tools for HVAC,car air condition maintenance and coolant or Freon adding

Upgrade your HVAC and automotive AC service capabilities with this professional-grade refrigerant charging hose set. The 72-inch length provides excellent reach and flexibility during maintenance work, while the robust construction handles pressures from 600 to 3000 PSI. These color-coded hoses (red, yellow, and blue) feature standard 1/4-inch threaded fittings, making them compatible with common refrigerants including R12, R22, R134A, 404, and 502. Designed for use with charging manifold gauge systems, these hoses are essential tools for automotive air conditioning service and HVAC maintenance tasks. The three-color system helps technicians quickly identify service, high, and low-pressure lines during operation. The generous length and pressure rating make these hoses suitable for both residential HVAC systems and automotive AC applications.