Setting the Standard for HVAC/R and Automotive Service Tools. More than seventy-five years ago, Jack Ritchie set a goal for Ritchie Engineering: to become the standard by which all other HVAC/R hoses are measured. In the last seven decades, the YELLOW JACKET® brand has not only become the standard in hoses, tools, refrigeration gauges, manifolds, HVAC vacuum pumps and refrigerant recovery machines, we have become legendary… How have we done it? Through an unwavering commitment to excellence. It is the single most important attribute in the longevity of a company. While other companies sold out, sent work overseas or lessened quality, the relentless commitment of our people has led to over 75 years of best-in-class products, first-class customer service, and innovations that make the contractor’s job easier, worldwide. Join us for the next 75 years as we commit to changing the standard once again.