Mastercool Low Side R744 Coupler

Features and Benefits:

• Meets SAE J639
• Reliable, self-locking construction
• Provides precise filling with an adjustable opening
• High pressure resistance with a burst pressure of ? 8700 psi (60 MPa)
• Easy disconnect with automatic pressure relief
• Refrigerant: R744
• Connection: 1/4” SAE
• High quality C3771BD brass with bright nickel plating
• High side dimensions: 75 mm (h) x 40 mm (w)
• Low side dimensions: 80 mm (h) x 40 mm (w)
• Weight: 1 lb 7 oz



Mastercool�s CO2 couplers are specially designed for use on R744 systems. These couplers meet the SAE specificationsfor containment of refrigerant while providing a premium design with easily adjustable open and close knobs.