At RLS, we’re not just making fittings. We’re making your job faster, safer, and more reliable. As the original press fitting designed specifically for HVAC and refrigeration, RLS offers a proven alternative to traditional connection methods. Trusted by pros around the globe, RLS press fittings deliver consistent performance and field-proven reliability that literally holds up under pressure.
The RLS Advantage
Not all press fittings are created equal.
We developed the first press fittings for HVAC/R. And we keep making them better. Every RLS fitting is built on our patented PressSure™ Technology, a proprietary design that brings together:
- Annealed copper for enhanced durability
- Dual-sealing technology combines dual mechanical press bands with an HNBR seal for reliable leak-proof protection
- Work-hardening process that strengthens the fitting as it’s pressed onto the tube
- 360° leak-proof connection engineered for high-pressure HVAC/R systems
The result? A joint that’s strong, secure, and built to last—even under the toughest conditions.
Why Make the Switch to Press?
Flame-free press fittings are transforming how contractors work:
- No torches, no fire risk, no permits, no nitrogen purging, no gas tanks or flame-related gear
- Installations up to 60% faster than brazing
- Consistent, repeatable joints—no rework or callbacks
- Lower total installed costs- reduce labor hours, minimize risk, maximize output
Tube preparation is nearly identical to traditional methods, but with no torches, gas, or fire-watch needed. You’ll also save the hassle of transporting brazing gear from site to site. Just load the press tool, make the connection, and move on.
With fewer steps, reduced labor hours, and greater jobsite safety, press-to-connect technology helps pros get more done, with less hassle.
Where Pros Use RLS
Engineered for performance in every environment.
Whether you’re installing a rooftop unit, servicing a walk-in freezer, or retrofitting a single-family home, RLS fittings are designed to perform across residential, commercial, and industrial applications:
- Residential: Ideal for heat pumps, mini-splits, and retrofits in new or existing homes. Perfect for tight installs and fast service work.
- Commercial: From multi-family and hotels to offices and retail, RLS offers clean, code-compliant connections that reduce install time and labor costs.
- Industrial: Built to handle critical systems in manufacturing, food storage, labs, and data centers—with leak-proof reliability you can trust.
And because RLS fittings don’t require flames or nitrogen purging, they’re especially useful for quick, safe service work—even in occupied spaces or tight equipment closets.
