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RLS Refrigerant Press Fitting coupling, 1/4" OD
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WARNING: This product can expose you to chemicals including Lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

RLS Refrigerant Press Fittings are specially designed to work without brazing, which automatically makes your job simpler and faster when joining copper tubes. In addition, the one piece fittings are reliably secure, leak-proof and more repeatable than brazed connections.

  • Less equipment and no gas needed
  • Safer conditions, no fire hazards, more environment-friendly
  • No hot work permits required
  • No solder-related quality issues
  • More flexible access to job sites
  • No need to nitrogen-purge


  • Continuous Operating Temperature: 250°F
  • O-Ring Temperature Rating: -40 to 300°F
  • Maximum Rated Pressure: 700 psi
  • Maximum Burst Pressure: 3000 psi
  • Vacuum Pressure Capability: 20 Microns
  • External Leak Rate: <0.1 Ounces of Helium per Year at Operating Pressure Range


  • Approved Oils: Mineral Oil, POE, PVE, PAG
  • Approved Tubing Materials: Copper to Copper Connections
  • Approved Copper Tubing Type: Annealed Copper Tubing
  • Type ACR, M, L, K Hard Copper (all sizes except 1-1/8")
RLS Product Catalog