Trusted Compliance and Industry Recognition

RLS Press Fittings are rigorously tested and certified to meet key industry standards for high-pressure HVAC/R systems. Whether you’re looking for UL listings, ICC-ES reports, or assurance of code compliance, RLS products are engineered and verified to deliver peace of mind.

Copper Development Association (CDA)

The CDA recognizes the safe and effective use of press connections in high-pressure HVAC/R applications. RLS® fittings are highlighted as a recommended option. Additional resources and guidance can be found directly through the CDA.

UL Listed to UL 207 Standards

RLS® fittings and connections have been tested and listed by Underwriters Laboratories to UL 207, the Standard for Refrigerant-Containing Components and Accessories (Nonelectrical). This listing certifies RLS products for use in refrigeration piping systems up to 700 psi.

  • Applies to all sizes of RLS fittings
  • Includes connections in valves and ancillary refrigeration products
  • [View U.S. UL Listing]
  • [View Canada UL Listing]

International Code Council ES PMG Listed

RLS® fittings have also been evaluated and listed by the International Code Council Evaluation Service (ICC-ES) for use in refrigeration piping systems up to 700 psi. The listing confirms product compliance and performance.

  • Covers all RLS fitting sizes and configurations
  • Validates use in valves and other HVAC/R components
  • [View ICC-ES Report] or download from our [Resources Page]

Code and Industry Standard Compliant

RLS fittings and connections have been evaluated and found compliant with the following U.S. mechanical and residential building codes, as well as industry standards:

International Mechanical Code (IMC)

  • 2021, 2018, 2015, 2012, 2009, 2006

International Residential Code (IRC)

  • 2021, 2018, 2015, 2012, 2009, 2006

Uniform Mechanical Code (UMC)

  • 2021, 2018, 2015, 2012, 2009, 2006

Standard Compliance

  • UL 207 (Edition 8)X

RLS gives contractors, engineers, and inspectors the confidence of a fully certified and code-compliant solution for high-performance HVAC/R installations.