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Coiled copper line set with flared ends, transparent insulation, thirty five feet

Streamline

Streamline 40820350B3B6 Liquid and Suction Line Set 35 ft

SKU CH-CNR2-3X787

Copper line set with 1/4 in liquid and 1/2 in suction flared ends, 35 ft length, 1/2 in insulation for mini-split systems

  • Product colorTransparent
  • 35 ft length reaches distant indoor units
  • 1/4 in liquid line fits standard mini-split connections
  • 1/2 in suction line matches common system sizing
  • 1/2 in insulation thickness reduces thermal loss
  • Flared ends on both lines simplify installation

Copper Line Set for Mini-Split Systems

This 35-foot copper line set connects the indoor and outdoor units of ductless mini-split air conditioning and refrigeration systems. It includes both the liquid and suction lines needed for a complete refrigerant circuit. Installers use it for new installations or line replacements where flare connections are required.

Practical Limits of Flare Connections

The 1/4-inch liquid line and 1/2-inch suction line both terminate in flared ends, so no brazing equipment is required on site. The 1/2-inch insulation thickness helps control condensation and thermal loss on the suction side. Flare fittings demand precise torque and clean sealing surfaces to prevent leaks under operating pressure.

35-Foot Length Determines Fit

The fixed 35-foot length is the single specification that decides whether this set suits the installation. Measure the exact routing path between the indoor and outdoor units before purchase; excess length cannot be removed without cutting and re-flaring, while a shortfall requires a different set.

How it compares

Measured against everything we stock in Heating & Cooling Controllers, at today’s prices. Recalculated every night.

Price $215.99
Pricier than about 84% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand nameSTREAMLINE
Product colorTransparent

Questions about this item

Should I pick the 35 ft set or a different length?

Choose the 35 ft length when the outdoor unit sits roughly that distance from the indoor head; excess coil adds pressure drop and insufficient length will not reach.

What does the 35 ft length mean once the lines are installed?

It gives a 35 ft run between the condenser and the evaporator, covering typical single-zone mini-split spacing with both liquid and suction lines pre-insulated.

Are the flared ends compatible with standard mini-split flare ports?

The liquid line has a 1/4 in. O.D. flare and the suction line a 1/2 in. O.D. flare, matching the common flare sizes used on residential mini-split and AC units.

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