The R454B transition is the current industry-wide move toward a more environmentally friendly refrigerant standard. This change is driven by federal regulations aimed at reducing the Global Warming Potential (GWP) of air conditioning systems. We are leading the charge by offering a dedicated R454B Products collection. While older systems used R410A, the new R454B gas offers better efficiency and a smaller carbon footprint. You can learn more about how this affects your purchase on our R454B Transition info page. Homeowners should be aware that these new systems require slightly different handling by EPA 608 Certified technicians. Buying an R454B-ready system is a great way to "future-proof" your home against upcoming phase-outs.