Mastercool R1234YF Refrigerant Visual Inspection Sight Glass.

 

Features

• To View Condition Of Refrigerant & Refrigerant Oil In Automotive AC Systems.
• TO BE USED ON R1234YF SYSTEMS.
• Allows the technician to visually inspect the refrigerant.
• SAE approved blue and red hoses.
• Standard 1234YF couplers.