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Innovative Metal-to-Metal Sealing HVAC/R Fittings For all refrigerant lines

SmartLock® Fittings

When we first got started as a company, we saw many issues with using open flames on expensive equipment to connect the valves to copper or aluminum tubes for any home’s HVAC/R system. Not only were the flaring or brazing jobs causing inconsistent results that depended on the skill level of the contractor, but a hazardous job if the contractor had to use open flames in dry attics or in tight corners. Let’s not forget the multitude of equipment and permits that are required for the traditional brazing and flaring work. Enter SmartLock: the global solution to all your HVAC/R problems.


Simple Solution for Air Conditioning, Heat Pump AND Refrigeration system. Application Specifications Including:

  • Ductless Mini-Splits
  • Standard Unitary Swages
  • Multi Zone Systems
  • VRF Systems
  • Refrigeration Systems


Elbow Swage Union (ELSW), our newest product, connects copper or aluminum tube to swage valve without the need for brazing, but comes off the swage valve at a 90-degree angle for those tight corners. This gives more bang for your buck where ELSW fittings replace having to buy Swage Union (SWUN) and Elbow Union (ELUN).

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