Copper Tubes
Line Sets

Plain End
Suction Lines
Ductless Lines

LineSets Unlimited

Line sets consist of two copper tubing lines for connecting the outdoor air conditioner or heat pump to the indoor evaporator coil. The smaller tube is called the liquid line. The larger tube is referred to as the suction line, and includes insulation. The liquid line diameter is available from 1/4" to 3/8" inches in diameter. The suction line diameter is available in sizes from 3/8" to 1 1/8" inches, depending on the size and efficiency of the air conditioner or heat pump. Line sets are available in lengths of 15', 20'. 25'. 30', 35', 40', 50' or 60'. Insulation thickness is available from 1/4" to 3/4". Line sets from LineSets Unlimited have sweat fittings on both ends.

Line sets are available with various fitting combinations

  • Sweat fittings on both ends
  • Sweat fittings on one end & Quick Connect on other end
  • Quick Connect fittings on both ends with R-22 holding charge
  • Flare fitting both ends for Mini-Split applications
  • Insualtion on Liquid Line for Mini-Split applications

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