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Airex (58)
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DiversiTech (136)
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Fortress (146)
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Suction Line

1/4" (20)
3/8" (58)
1/2" (54)
5/8" (73)
3/4" (46)
7/8" (40)
1-1/8" (4)

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Insulated (254)
Non-Insulated (12)

Liquid Line

1/4" (97)
3/8" (116)
1/2" (16)
5/8" (15)
3/4" (16)
7/8" (12)

Length (Feet)

1.7' (1)
15' (16)
6' (13)
12' (4)
13' (8)
16' (3)
164' (11)
2.6' (1)
20' (2)
25' (39)

Insulation Thickness

1/2" (171)
3/8" (39)
3/4" (58)
1" (42)

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(7)

Price Range

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$10 to $15 (57)
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$20 to $25 (52)
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$30 to $35 (49)
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$40 to $45 (35)

Line Sets

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Product Image of 3/8" x 300 ft. PERT-AL-PERT Refrigerant Line Set (1/2" Insulation)
$493.39 each
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Product Image of 4.5" Soffit Inlet - LP122I (Ivory)
$30.04 each
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Product Image of 3.5" Wall Inlet - LW92B (Brown)
$31.40 each
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Product Image of E-FLEX GUARD White Line Set Cover for 3/4" and 7/8" Tubing w/ 1" Wall Insulation (75 ft)
$521.38 each
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Product Image of E-FLEX GUARD White Line Set Cover for 5/8" or 7/8" Tubing w/ 3/4" Wall Insulation (75 ft)
$485.82 each
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Product Image of 3/8" LL x 3/4" SL Standard Refrigerant Line Set, 1/2" Black Duraguard UV Resistant Suction Line Only (50')
$416.95 each
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Product Image of 3/4" x 50 ft. PERT-AL-PERT Refrigerant Line Set (1/2" Insulation)
$212.47 each
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Product Image of 3" SpeediChannel 90-Degree Inside Elbow (White)
$28.90 each
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Product Image of 1/4" x 300 ft. PERT-AL-PERT Refrigerant Line Set (1/2" Insulation)
$435.18 each
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Product Image of 4.5" Tee - LT122I (Ivory)
4.5" Tee - LT122I (Ivory)
SKU: 84135
Fortress
SKU: 84135
Brand: Fortress
(1)
$52.37 each
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$280.14 box of 6
$46.69 each
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Product Image of 6" SpeediChannel Duct End (White)
$29.22 each
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Product Image of 1/4" LL x 3/8" SL Mini Split Refrigerant Line Set w/ Flare Nuts, 1/2" Black Duraguard UV Resistant Insulation (35 Ft.)
$256.48 each
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Product Image of 2.75" Slimduct Tee (White)
2.75" Slimduct Tee (White)
SKU: 86015-RECTORSEAL
Rectorseal
SKU: 86015-RECTORSEAL
Brand: Rectorseal
$59.28 each
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Product Image of 3/8" LL x 5/8" SL Mini Split Refrigerant Line Set, 1/2" Black Duraguard UV Resistant Insulation (50 Ft.)
$437.61 each
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Product Image of 1/4" LL x 3/8" SL w/ 1/2" Insulation x 50ft. Refrigerant Line Set
$334.47 each
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Product Image of 6" SpeediChannel 90-Degree Inside Elbow (Natural)
$54.68 each
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Product Image of 1/4" LL x 3/8" SL Mini Split Refrigerant Line Set, 1/2" Black Duraguard UV Resistant Insulation (15 Ft.)
$309.21 each
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Product Image of 3.75" Slimduct Flex Adaptor (Brown)
$20.33 each
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Product Image of 3/8" LL x 5/8" SL Standard Refrigerant Line Set, 3/8" Black Insulated Suction Line Only (50')
$285.51 each
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Product Image of 3.5" 90° Flat Elbow - LK92I (Ivory)
$20.64 each
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$123.84 box of 6
$20.64 each
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Product Image of 1/4" LL x 3/8" SL Mini Split Refrigerant Line Set w/ Flare Nuts, 1" Black Insulation (35 Ft.)
$380.65 each
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Product Image of E-FLEX GUARD 90-Degree White Line Set Insulation Elbow for 3/4" and 7/8" Tubing w/ 1" Wall Insulation
$17.47 each
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Product Image of 4.5" Coupler - LJ122B (Brown)
4.5" Coupler - LJ122B (Brown)
SKU: 84370
Fortress
SKU: 84370
Brand: Fortress
$17.54 each
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Product Image of 3/8" LL x 3/4" SL Standard Refrigerant Line Set, 1/2" Black Insulated Suction Line Only (30')
$200.93 each
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Product Image of 7/8" Copper Stub
7/8" Copper Stub
SKU: 6325
Python
SKU: 6325
Brand: Python
$3.43 each
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$152.00 box of 50
$3.04 each
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Product Image of 3/8" LL x 5/8" SL Mini Split Refrigerant Line Set, 1/2" Black Duraguard UV Resistant Insulation (35 Ft.)
$309.20 each
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Product Image of 3/8" LL x 1-1/8" SL Standard Refrigerant Line Set, 1/2" Black Insulated Suction Line Only (50')
$551.54 each
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Product Image of 3" SpeediChannel Adjustable Flat Bend (White)
$18.41 each
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Product Image of 6" SpeediChannel 90-Degree Outside Elbow (Natural)
$28.59 each
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Product Image of E-FLEX GUARD White Line Set Cover for 5/8" or 7/8" Tubing w/ 1/2" Wall Insulation (75 ft)
$462.55 each
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Product Image of 3/8" LL x 7/8" SL Standard Refrigerant Line Set, 3/8" Black Insulated Suction Line Only (50')
$401.02 each
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Product Image of 2.75" x 20" Length Slimduct Flexible Elbow (Ivory)
$17.26 each
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$345.20 box of 20
$17.26 each
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Product Image of 4" SpeediChannel 45-Degree Flat Bend (Brown)
$50.40 each
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Product Image of 3" EasyGuard 90-Degree Inside Elbow (White)
$16.63 each
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Product Image of E-FLEX GUARD 90-Degree White Line Set Insulation Elbow for 5/8" and 7/8" Tubing w/ 1/2" Wall Insulation
$14.18 each
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Product Image of E-FLEX GUARD 90-Degree Black Line Set Insulation Elbow for 3/4" and 7/8" Tubing w/ 1" Wall Insulation
$16.67 each
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Product Image of 1/4" LL x 3/8" SL Mini Split Refrigerant Line Set w/ Flare Nuts, 1/2" Black Insulation (50 Ft.)
$400.82 each
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Product Image of 1/4" LL x 3/8" SL Mini Split Refrigerant Line Set, 3/8" Black Insulation (25 Ft.)
$153.40 each
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Product Image of 3.5" End Fitting - LEN92I (Ivory)
$11.22 each
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$67.32 box of 6
$11.22 each
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Product Image of 4.5" Wall Flange - LWF122W (White)
$30.04 each
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Product Image of 5.5" Slimduct Saddle For Flex Elbow
$15.12 each
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$151.20 box of 10
$15.12 each
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Product Image of 7/8" Male Compression Fitting Assembly
7/8" Male Compression Fitting Assembly
SKU: 6025-PYTHON
Python
SKU: 6025-PYTHON
Brand: Python
$20.06 each
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$429.84 box of 24
$17.91 each
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Product Image of E-FLEX GUARD Black Line Set Cover for 3/4" and 7/8" Tubing w/ 1" Wall Insulation (75 ft)
$511.12 each
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Product Image of Turbo-Kleen Kit (Reusable Injector Nozzle, Flush Tool, 1 Pint Solution, and Clear Plastic Connector Line)
$161.65 each
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Product Image of 3.75" Slimduct Tee (Brown)
3.75" Slimduct Tee (Brown)
SKU: 85475-RECTORSEAL
Rectorseal
SKU: 85475-RECTORSEAL
Brand: Rectorseal
$129.31 each
In Stock
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Product Image of 3" EasyGuard T-Joint Line Set (White)
$22.07 each
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Product Image of 1/4" LL x 1/2" SL Mini Split Refrigerant Line Set w/ Flare Nuts, 1/2" Black Insulation (50 Ft.)
$326.82 each
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Product Image of 3/4" Female Compression Fitting Assembly
3/4" Female Compression Fitting Assembly
SKU: 6120
Python
SKU: 6120
Brand: Python
$26.63 each
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$561.84 box of 24
$23.41 each
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More About Line Sets
Refrigerant line sets are flexible copper pipes that connect the outdoor condenser or heat pump to its corresponding indoor unit in a mini-split air conditioner system. They are composed of two types of lines: a liquid line and a suction line. The liquid line is the smaller of the two and connects the outdoor unit to the indoor unit. The suction line is the larger of the two lines and returns the expanded gas from the evaporator back to the condenser. Ductless mini split line sets can be cut with a tubing cutter to satisfy each individual installation requirement. Line set size is determined by the indoor unit, and longer line set runs will require adding refrigerant to the system.

We offer two types of refrigeration line sets. Flared refrigerant line sets are used with mini-split systems and both the suction and liquid lines are insulated. Our selection of standard refrigerant line sets have plain straight ends where only the suction line is insulated. Complete your systems with line set covers, connectors, and flush. Shop now to find the mini split line set best suited for your systems for optimal thermal comfort.