RLS LLC designed, engineered and developed the first press-to-connect fittings for the HVAC and refrigeration industries. After years of research and development, we introduced our fittings to the market in 2015. Over the years, we continued to expand our product line, regularly introducing new items and new sizes to meet customer needs.
Today, there are millions of RLS fittings installed worldwide, and the original, patented, proven RLS product line remains the only line of refrigerant press fittings in the world to be UL Listed to 700 psi.
RLS LLC is part of Marmon Holdings, Inc., a Berkshire Hathaway company. Marmon is a global industrial organization comprising 11 diverse business sectors and more than 125 autonomous manufacturing and service businesses. Revenues exceeded $8.1 billion in 2018.