Opteon YF (R-1234yf) automotive refrigerant 12 ounce cans from Chemours now come with a reusable recharge hose attached and ready to go! This provides DIYers and technicians alike, with a cost-effective package for servicing the latest cars running on R-1234yf. Opteon YF is the cooler choice for your car, and the planet. It's as easy to use and cools as effectively as R-134a, but with 99.9 percent less global warming potential (GWP.) Since 2015, R-1234yf has been widely adopted by automotive OEs globally for use in new vehicles that are on the road today. PART # D15444332 UPC 686114002934