RLS LLC pioneered and patented the first press-to-connect fittings for HVAC and refrigeration industries.  RLS Press Fittings were invented for professionals who need a flame-free alternative and want to save more time and money on the job!

These first-of-their-kind fittings connect quickly and easily using an RLS-approved press tool and jaws, replacing the time-consuming practice of manually brazing joints.

We provide a comprehensive product range, spanning from 1/4 inch to 2-1/8 inch fittings, along with complementary ancillary products for a fully integrated press system.

Our fittings debuted in 2015 through an exclusive partnership with Parker-Hannifin Corporation’s Sporlan division, sold under the ZoomLock® brand. The technology's popularity led to a wide range of new products introduced over 5 years, achieving global adoption.

Following our private-label arrangement conclusion in 2019, we began selling our fittings under the RLS brand. As of August 2020, our focus shifted away from supplying ZoomLock brand, concentrating on expanding our distribution.

RLS LLC is part of Marmon Holdings, Inc., part of Berkshire Hathaway Inc., is a global industrial organization with more than 100 autonomous manufacturing and service businesses, organized within 11 groups.  With $10 billion in annual revenue.



RLS Rapid Locking System

RLS Rapid Locking System's headquarters in Hazelwood, MO, United States

Sean Kelleher

Kevin Ashworth

Vince Waters

RLS Rapid Locking System

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