About RLS


RLS LLC designed, engineered and introduced the first press-to-connect fittings for the HVAC and refrigeration industries in 2014. Since then the company has continued to expand its product line, regularly introducing new products and new sizes to meet market needs. Today, there are millions of RLS fittings installed worldwide, and the patented RLS product line remains the only line of press fittings in the world to be UL Listed to 700 psi.

RLS is part of Marmon Holdings, Inc., a Berkshire Hathaway company. Marmon comprises three autonomous companies consisting of 15 diverse, stand-alone business sectors, and about 175 independent manufacturing and service businesses. These businesses operate more than 350 manufacturing, distribution and service facilities, and employ more than 20,000 people worldwide. Revenues exceeded $7.7 billion in 2017. RLS operates in the Plumbing and HVAC/R sector of Marmon Engineered Components Company.