Automobile A/C

Your Options For Mobile A/C

Honeywell offers R-134a, the industry standard for mobile A/C, as well as Solstice® yf (R-1234yf), a near drop-in replacement for 134a. Automakers around the world can now meet EU low GWP requirements for auto air conditioning refrigerant with Solstice yf.

Mobile Air Conditioning (MAC) Refrigerant Credit

Honeywell is supportive of actions that will continue the transition to environmentally preferable alternatives to hydrofluorocarbons (HFCs). We commend the decision to preserve the Mobile Air Conditioning (MAC) refrigerant credit option in the SAFE Affordable Fuel-Efficient (SAFE) Vehicles Rule. The MAC credit option will help continue the transition to innovative refrigerants developed in the U.S. that will support local manufacturing and industry leadership. One of these refrigerants is Solstice® yf, which is currently used by over 90 million vehicles globally and is expected to grow to 115 million vehicles globally by the end of 2020.

Learn More About Solstice yf

  • Products
Product Name ASHRAE # Product Description
Solstice® yf Refrigerant HFO-1234yf Replaces R-134a in auto a/c systems.
Genetron® 134a R-134a Replaces R-12 in auto air conditioning and in residential, commercial and industrial refrigeration systems. For new equipment.


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