Line Sets and Accessories

What are Line Sets?

Line sets are made up of two copper pipes that are semi-flexible. These lines connect the outdoor air conditioner or heat pump to the indoor evaporator coil. The smaller of the two pipes is called the liquid line. The larger pipe is known as the suction line, and includes insulation. The diameter on the liquid line for standard residential systems is 3/8 inches in diameter. The suction line diameter is normally either 3/4, 7/8 or 1 1/8 inches, it depends on the size (and efficiency) of the air conditioning system or heat pump. Line sets come in multiple lengths and are designed to be cut to fit your exact need. When buying refrigeration line sets, measure the length of line set needed to connect your outdoor condenser to the indoor forced air equipment. Based on that length, the correct size diameter line set can be selected which will ensure your system meets the listed SEER rating and capacity.

 

For help in choosing the correct line set size, use the helpful chart we've included below the line sets listed on this page.

Subcategories:

Set Descending Direction

1-24 of 27

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  • 3/8" Copper Fitting Coupling - CFW01009

    3/8" Copper Fitting Coupling

    Model: CFW01009
    Low Price: $1.00
  • 3/4" and 3/8" Copper Fittings Kit

    3/4" and 3/8" Copper Fittings Kit

    Model: 3/4" and 3/8" Copper Fittings Kit
    Price of Group: $47.00

    Starting at: $1.00

  • 7/8" and 3/8" Copper Fittings Kit

    7/8" and 3/8" Copper Fittings Kit

    Model: 7/8" and 3/8" Copper Fittings Kit
    Price of Group: $51.00

    Starting at: $1.00

  • 1-1/8" and 3/8" Copper Fittings Kit

    1-1/8" and 3/8" Copper Fittings Kit

    Model: 1-1/8" and 3/8" Copper Fittings Kit
    Price of Group: $58.00

    Starting at: $1.00

  • Copper Fittings Kit

    Copper Fittings Kit

    Model: COPPERKIT
    Price of Group: $57.00

    Starting at: $1.00

  • 3/8" Long Sweep 90 Degree Copper Fitting Elbow

    3/8" Long Sweep 90 Degree Copper Fitting Elbow

    Model: CFW02716
    Low Price: $2.00
  • 3/8" Street 90 Degree Copper Fitting Elbow - CFW02809

    3/8" Street 90 Degree Copper Fitting Elbow

    Model: CFW02809
    Low Price: $3.00
  • 3/4" Copper Fitting Coupling - CFW01028

    3/4" Copper Fitting Coupling

    Model: CFW01028
    Low Price: $3.00
  • 7/8" Copper Fitting Coupling - CFW01034

    7/8" Copper Fitting Coupling

    Model: CFW01034
    Low Price: $3.00
  • 1-1/8" Copper Fitting Coupling - CFW01047

    1-1/8" Copper Fitting Coupling

    Model: CFW01047
    Low Price: $4.00
  • 3/4" Street 90 Degree Copper Fitting Elbow - CFW02828

    3/4" Street 90 Degree Copper Fitting Elbow

    Model: CFW02828
    Low Price: $5.00
  • 3/4" to 5/8" Copper Fitting Reducer Coupling - CFW01029

    3/4" to 5/8" Copper Fitting Reducer Coupling

    Model: CFW01029
    Low Price: $5.00
  • 3/4" Long Sweep 90 Degree Copper Fitting Elbow - CFW02728

    3/4" Long Sweep 90 Degree Copper Fitting Elbow

    Model: CFW02728
    Low Price: $8.00
  • 7/8" Long Sweep 90 Degree Copper Fitting Elbow - CFW02734

    7/8" Long Sweep 90 Degree Copper Fitting Elbow

    Model: CFW02734
    Low Price: $8.00
  • 7/8" Street 90 Degree Copper Fitting Elbow - CFW02735

    7/8" Street 90 Degree Copper Fitting Elbow

    Model: CFW02735
    Low Price: $9.00
  • 1-1/8" to 7/8" Copper Fitting Reducer Coupling - CFW01049

    1-1/8" to 7/8" Copper Fitting Reducer Coupling

    Model: CFW01049
    Low Price: $10.00
  • 7/8" to 3/4" Copper Fitting Reducer Coupling - CFW01035

    7/8" to 3/4" Copper Fitting Reducer Coupling

    Model: CFW01035
    Low Price: $10.00
  • 1-1/8" Long Sweep 90 Degree Copper Fitting Elbow - CFW02736

    1-1/8" Long Sweep 90 Degree Copper Fitting Elbow

    Model: CFW02736
    Low Price: $11.00
  • 1-1/8" Street 90 Degree Copper Fitting Elbow - CFW02737

    1-1/8" Street 90 Degree Copper Fitting Elbow

    Model: CFW02737
    Low Price: $12.00
  • Diversitech 3/8" Sight Glass Sweat for Air Conditioner Condenser

    Diversitech 3/8" Sight Glass Sweat for Air Conditioner Condenser

    Model: DPSG-3S
    Low Price: $29.00
  • Diversitech 5 Piece Flaring Tool Kit

    Diversitech 5 Piece Flaring Tool Kit

    Model: F5000
    Low Price: $124.95
  • Rectorseal Pro-Fit Flaring Kit

    Rectorseal Pro-Fit Flaring Kit

    Model: R-87001

    Regular Price: $189.01

    Special Price $131.21

  • Goodman Insulation Line Set - 30 Feet

    30 Feet of 3/8" LL x 3/4" SL x 3/8" Insulated Line Set

    Model: LS38343830
    Low Price: $223.00
  • Goodman Insulation Line Set - 30 Feet

    30 Feet of 3/8" LL x 7/8" SL x 3/8" Insulated Line Set

    Model: LS38783830
    Low Price: $242.00

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1-24 of 27

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For help in choosing the correct line set size, use the chart below.

 

Line Set Sizing Chart

 

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