Mastercool 45721 72" Blue Charging Hose with 1/4" SAE Auto Shut-Off Valve

The Mastercool 45721 is a professional-grade 72-inch refrigerant charging hose designed for HVAC and automotive air conditioning service. This blue standard hose features integrated 1/4" SAE automatic shut-off valve fittings that retain refrigerant within the service hose when disconnected from the system, preventing refrigerant loss and reducing environmental impact.

Key Features:

• Automatic shut-off valves retain refrigerant in service hose upon disconnection
• 72-inch length provides extended reach and flexibility during service
• 1/4" SAE fittings compatible with standard AC service equipment
• 750 PSI working pressure for reliable performance
• 3,000 PSI burst pressure rating for safety margin
• Meets EPA, SAE, and UL standards for refrigerant containment
• Blue color coding for standard pressure applications

This professional charging hose is ideal for technicians seeking to upgrade from shorter hoses while maintaining compliance with environmental and safety regulations. The automatic shut-off technology makes refrigerant handling more convenient and helps minimize refrigerant emissions during service procedures.

WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.