Product Category

SLS141250

SLS141250--DURO-LINE™ Steel Line Set 1/4" x 1/2" x 50'

Duro-Line™ is a Steel tubing with an innovative coated low carbon steel alternative to Copper Line Sets. With higher strength & durability, it is a sustainable alternative to copper, aluminum or plastic.

Features/Benefits

  • Provides 40% higher operating pressure than copper and will support continuous demand operating pressures at 5,500 psi
  • Supports operation temps at -55°F to 500°F and approved testing with new A2L refrigerants.
  • Burst pressure tested above 7,000 psi
  • UV Insulated Lineset Coils up to 164 ft. and up to 30K feet of uninsulated coils
  • Durability tested to exceed new A2L refrigerants
  • Carries all known HVAC & Refrigeration Refrigerants
  • Made in USA
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Liquid Line Size: 1/4"
Suction Line Size: 1/2"
Length: 50 Feet
Pressure Rating: 1100PSI
Agency Approvals: UL®
Warranty: Limited 20 Year
Mini Splits and VRF Systems
Commercial Installations
High Corrosive Areas (Coastal Communities)
Unitary Line Sets

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Can you replace old line set with Duro-Line steel tubing?: Yes, especially if the old line set is losing too much energy.
Does Duro-Line use standard fittings?: Yes, all standard fittings.
Can Duro-Line be cut with aftermarket tubing cutters?: Yes.
Can you use a tubing bender on Duro-Line?: Yes, Duro-Line does not require any special cutting, bending, or chamfering tools.
Does Duro-Line kink easily?: No, Duro-Line is stiffer than standard copper, kinking is not a concern if tube bender is used properly.
Can you attach temperature probes to Duro-Line?: Yes, non-marring clamps should be used to protect the tube coating.
Is Duro-Line compatible refrigeration flushing fluids?: Yes.
Is Duro-Line insulation UV rated?: Yes, Armaflex Shield is ASTM G154 tested to 5000 hours.