Shopping Cart

Your cart is empty.

Your cart is empty.

Mastercool Low Side CO2 Coupler for R744 Systems, 84934-CO2, 1/4' SAE Connection

5.0 Write Review
Free shipping on orders over $29.99

$176.75

$ 75 .99 $75.99

In Stock
  • 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


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