Are RLS fittings approved by state and city building codes?

RLS fittings have been approved by UL-207, ASHRAE 15, International Code Council – Evaluation Service (ICC-ES), International Mechanical Code (IMC), Universal Mechanical Code (UMC) and International Residential Code (IRC). These approvals are all that is needed in most areas. Please contact your local building inspector with questions prior to install. Installers should check local codes to ensure fitting compliance prior to install.

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