Why DURO-LINE?

Proudly made in the USA, Duro-Line Steel Line Sets offer unmatched strength, flexibility, roundness, and corrosion resistance - making them the future of HVAC line sets.

• 20-year warranty
• Sustainable Strength – more durable and less susceptible to penetration.
• Practical – Use all your original tools, no need for special tools.

• Proven performance in automotive/refrigeration industry for 40 years.

Duro-Line Strength

  • Handles extreme temps: -55°F to 500°F

  • ~ 40% higher operating pressure than copper, with burst strength over 7,000 psi

  • Withstands corrosive saltwater regions​​

  • A sustainable alternative to copper, aluminum and/or plastic

DURO-LINE TECHNOLOGY

Duro-Line can be installed in a variety of ways using different methods.

  • Duro-Line can be brazed to copper using the recommended Solderweld Sil Sol 56%.

    • Minimum percentage of Sil Sol is 45%.

  • Duro-Line can be installed using a variety of Push or Press Fittings.

    • Including RLS®, ZoomLock®, Airsept Smart Splice, SmartLock®, NIBCO®

    • Duro Dyne recommends SB1 Fittings (sold by SUPCO®)

    • Duro-Line can also be flared and swedged with standard tools used with copper.