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Airex (58)
Bluefin (21)
C&D Valve (1)
DiversiTech (136)
Duro-Line (15)
Easybend (12)
Fortress (146)
Hilmor Tools (7)
ICOOL (33)
Isoclima (27)

Suction Line

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

Features

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)

Review Score

(136)
(57)
(14)
(7)
(7)

Price Range

Under $1 (2)
$1 to $5 (7)
$5 to $10 (30)
$10 to $15 (57)
$15 to $20 (57)
$20 to $25 (52)
$25 to $30 (53)
$30 to $35 (49)
$35 to $40 (41)
$40 to $45 (35)

Line Sets

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Product Image of 2.75" Slimduct Flex Adaptor (Ivory)
$6.27 each
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$125.40 box of 20
$6.27 each
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Product Image of 3/8" SL x 100', 1/2" Black Duraguard UV Resistant Suction Line Only, Refrigerant Line Set
$427.87 each
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Product Image of 4" SpeediChannel Flat Wall Escutcheon (Natural)
$11.70 each
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$105.00 box of 10
$10.50 each
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Product Image of 3" SpeediChannel 45-Degree Flat Bend (Natural)
$24.59 each
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Product Image of 3.5" Soffit Inlet - LP92I (Ivory)
3.5" Soffit Inlet - LP92I (Ivory)
SKU: 84034-FORTRESS
Fortress
SKU: 84034-FORTRESS
Brand: Fortress
$23.56 each
In Stock
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Product Image of 3/8" LL x 7/8" SL Standard Refrigerant Line Set, 3/4" Black Insulated Suction Line Only (30')
$289.17 each
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Product Image of 1/4" LL x 5/8" SL Mini Split Refrigerant Line Set, 1/2" Black Insulation (50 Ft.)
$324.58 each
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Product Image of 3/8" LL x 5/8" SL Mini Split Refrigerant Line Set, 3/8" Black Insulation (50 Ft.)
$363.63 each
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Product Image of 3.5" End Fitting - LEN92B (Brown)
$16.79 each
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Product Image of 4.5" 90° Flat Elbow - LK122B (Brown)
$40.15 each
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Product Image of 5/8" Flare x MNPT Elbow
5/8" Flare x MNPT Elbow
SKU: 6515
Python
SKU: 6515
Brand: Python
$5.16 each
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$224.50 box of 50
$4.49 each
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Product Image of 1/4" Line Set w/ 1" Insulation x 50 ft. Refrigerant Line Set (Single Roll)
$186.79 each
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Product Image of 3" SpeediChannel Flex Joint (Natural)
$13.20 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 Duraguard UV Resistant Insulation (50 Ft.)
$420.23 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 (20')
$192.50 each
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Product Image of 4" SpeediChannel 90-Degree Inside Elbow (Brown)
$46.14 each
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Product Image of 3" SpeediChannel Installation Kit w/ Channel (Natural)
$175.22 each
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Product Image of 2.75" Slimduct Saddle For Flex Elbow
2.75" Slimduct Saddle For Flex Elbow
SKU: 86001-RECTORSEAL
Rectorseal
SKU: 86001-RECTORSEAL
Brand: Rectorseal
$11.73 each
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$117.30 box of 10
$11.73 each
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Product Image of 3/8" LL x 3/4" SL Refrigerant Line Set, 90 Degree Bend, 3/8" Black Insulated Suction Line Only (15')
$149.23 each
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Product Image of 3/8" LL x 5/8" SL Mini Split Refrigerant Line Set w/ Flare Nuts, 1/2" Black Insulation (15 Ft.)
$195.06 each
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Product Image of 5.5" Slimduct 90° Vertical Elbow (Ivory)
5.5" Slimduct 90° Vertical Elbow (Ivory)
SKU: 85222-RECTORSEAL
Rectorseal
SKU: 85222-RECTORSEAL
Brand: Rectorseal
$50.87 each
In Stock
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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 (25')
$289.19 each
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Product Image of 1/4" LL x 5/8" SL Mini Split Refrigerant Line Set, 1" Black Duraguard UV Resistant Insulation (50 Ft.)
$468.13 each
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Product Image of 6" SpeediChannel 90-Degree Outside Elbow (White)
$42.68 each
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Product Image of 5/8" Male Compression Fitting Assembly
5/8" Male Compression Fitting Assembly
SKU: 6015-PYTHON
Python
SKU: 6015-PYTHON
Brand: Python
$11.93 each
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$255.60 box of 24
$10.65 each
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Product Image of 3.5" 90° Inside Vertical Elbow - LCI92I (Ivory)
3.5" 90° Inside Vertical Elbow - LCI92I (Ivory)
SKU: 84022-FORTRESS
Fortress
SKU: 84022-FORTRESS
Brand: Fortress
(1)
$27.54 each
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Product Image of 4.5" 45° Inside Vertical Elbow - LCFI122W (White)
$36.51 each
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Product Image of 2.75" Slimduct Soffit Inlet (Ivory)
$28.07 each
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$561.40 box of 20
$28.07 each
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Product Image of 5.5" Slimduct Tee (Ivory)
5.5" Slimduct Tee (Ivory)
SKU: 85235-RECTORSEAL
Rectorseal
SKU: 85235-RECTORSEAL
Brand: Rectorseal
$100.16 each
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Product Image of 3.75" x 31" Length Slimduct Flexible Elbow (Ivory)
$34.53 each
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$345.30 box of 10
$34.53 each
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Product Image of 1/4" Male Compression Fitting Assembly
$9.47 each
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$304.56 box of 36
$8.46 each
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Product Image of 3/4" Line Set w/ 1/2" Insulation x 82 ft. Refrigerant Line Set (Single Roll)
$616.48 each
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Product Image of 3/8" Line Set w/ 1" Insulation x 50 ft. Refrigerant Line Set (Single Roll)
$236.87 each
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Product Image of 1/4" SL x 50', 1/2" Black Duraguard UV Resistant Suction Line Only, Refrigerant Line Set
$155.89 each
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Product Image of 1/4" LL x 5/8" SL Mini Split Refrigerant Line Set, 1/2" Black Insulation (25 Ft.)
$309.99 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 (25')
$313.85 each
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Product Image of 4" SpeediChannel Cap (White)
4" SpeediChannel Cap (White)
SKU: 230-DC4W
DiversiTech
SKU: 230-DC4W
Brand: DiversiTech
$11.93 each
BOX UP & SAVE 6%
$112.00 box of 10
$11.20 each
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Product Image of 3" SpeediChannel 90-Degree Outside Elbow (Brown)
$19.68 each
Backorder
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Product Image of 3/8" LL x 3/4" SL Standard Refrigerant Line Set, 3/8" Black Insulated Suction Line Only (20')
$334.06 each
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Product Image of 1/4" LL x 1/2" SL Mini Split Refrigerant Line Set, 1/2" Black Insulation (25 Ft.)
$266.42 each
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Product Image of 5/8" Line Set w/ 1/2" UV Resistant Insulation x 164 ft. Refrigerant Line Set (Single Roll)
$1,151.65 each
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Product Image of 5/8" Line Set with 1" Insulation x 50 ft. Refrigerant Line Set (Single Roll)
$351.09 each
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Product Image of 3/8" LL x 3/4" SL Standard Refrigerant Line Set, 3/4" Black Insulated Suction Line Only (30')
$233.46 each
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Product Image of 3/8" LL x 7/8" SL Standard Refrigerant Line Set, 1/2" Black Insulated Suction Line Only (50')
$510.11 each
In Stock
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Product Image of 4.5" End Fitting - LEN122B (Brown)
$21.83 each
In Stock
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Product Image of 5/8" SL x 100', 1/2" Black Duraguard UV Resistant Suction Line Only, Refrigerant Line Set
$635.16 each
In Stock
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Product Image of 6" SpeediChannel Flat Wall Escutcheon (Natural)
$13.99 each
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$125.60 box of 10
$12.56 each
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Product Image of 1/4" LL x 3/8" SL Mini Split Refrigerant Line Set, 1/2" Black Insulation (30 Ft.)
1/4" LL x 3/8" SL Mini Split Refrigerant Line Set, 1/2" Black Insulation (30 Ft.)
SKU: 40620300B6
Mueller Industries
SKU: 40620300B6
$193.09 each
In Stock
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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.