Mastercool 53123-YF Refillable R1234yf Oil Injector 2oz A/C System Tool

The Mastercool 53123-YF is a professional-grade refillable oil injector designed specifically for R1234yf automotive air conditioning systems. This precision tool allows technicians to accurately inject compressor oil or UV dye into A/C systems with complete control and accuracy.

Key Features:

• Heavy-duty anodized aluminum 2 oz capacity reservoir with precision measurement scales in 1/10 ounce, 1/4 ounce, and milliliter increments
• Simple operation: connect to low-side service port and twist handle to dispense the desired amount
• Includes R1234yf low-side coupler with extended disconnect sleeve for secure, leak-free connection
• Nylon barrier blue hose meets J2888, EPA, SAE, and UL industry standards
• Coupler meets SAE J639 and J2888 specifications for R1234yf refrigerant systems
• Durable construction for professional shop use

This refillable injector provides accurate, controlled dispensing of compressor oil or UV leak detection dye directly into R1234yf A/C systems. The graduated measurement scales ensure precise oil charge amounts, while the heavy-duty aluminum construction and compliant hose assembly deliver long-lasting reliability in demanding shop environments.