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Copper refrigeration tubing coil, 6.5ft length, 3mm outer diameter

Unique-Bargains

Unique-Bargains Refrigeration Tubing Copper 3mm OD 2mm ID 6.5Ft

SKU CH-674Y-QQA63

Copper refrigeration tubing with 3 mm OD, 2 mm ID and 6.5 ft length for HVAC and automotive oil lines

  • Product typeElectrical Boxes
  • Fine ductility for easy bending
  • 3 mm outer diameter fits standard fittings
  • 5 mm wall thickness balances strength and weight
  • 5 ft coil length covers typical runs
  • Corrosion-resistant copper suits refrigeration and auto oil lines

Copper tubing for refrigeration and automotive use

This 3 mm outer-diameter copper coil suits technicians servicing refrigerators, freezers and air-conditioning units, as well as mechanics fabricating or repairing automobile oil lines. Its fine ductility and corrosion resistance make it reliable for heat-exchange circuits in both stationary and mobile equipment.

Replaces worn or kinked soft-copper lines

The 6.5 ft length lets you swap out damaged sections on domestic cooling appliances or vehicle oil circuits without joining multiple short pieces. The upgrade is worthwhile when the original tubing has work-hardened, developed leaks or cannot be bent cleanly around tight radii.

Simple flare or compression fitting install

Low melting point and high strength allow easy welding or brazing, while the 0.5 mm wall thickness withstands normal pressure testing. The main risk is over-annealing the copper during heating, which can cause collapse on tight bends; work gradually and support the tube to avoid this.

How it compares

Measured against everything we stock in Electrical Enclosures & Cabinets, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 87% of the 1,411 comparable items (median $39.99).

Specifications

Product
Brand nameUnique Bargains
Product typeElectrical Boxes

Questions about this item

What outer diameter and wall thickness must my fittings match for the 3 mm copper tubing?

The tubing has a 3 mm outer diameter and a 0.5 mm wall thickness, so fittings must suit those exact dimensions.

How should I uncoil and shape the 6.5 ft length without kinking it?

Straighten the coil slowly by hand, bending with a wide radius; sharp bends collapse the thin 0.5 mm wall and restrict flow.

When should I replace this copper refrigeration line?

Replace it if you see green corrosion, flattening from over-bending, or any leak at a flare joint; the 73 g coil has no service schedule.

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