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MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 1/4" x 3/8", for DIY 6K, 9K, & 12K Mini Split Indoor Air Handler (DIY50-1438C-O)
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MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 1/4" x 3/8", for DIY 6K, 9K, & 12K Mini Split Indoor Air Handler (DIY50-1438C-O)

MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 1/4" x 3/8", for DIY 6K, 9K, & 12K Mini Split Indoor Air Handler (DIY50-1438C-O)

$205.45

Original: $587.00

-65%
MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 1/4" x 3/8", for DIY 6K, 9K, & 12K Mini Split Indoor Air Handler (DIY50-1438C-O)

$587.00

$205.45

The Story

The MRCOOL 5th Gen DIY Line Set is a required component for installing your MRCOOL DIY ductless mini-split system. This 50-foot model is pre-charged with environmentally friendly R-454B refrigerant and works with MRCOOL's DIY 5th Gen 6K, 9K, and 12K air handler units, featuring 1/4” liquid and 3/8” suction lines.

Equipped with Quick Connect fittings, the line set allows for fast, tool-free installation—no vacuuming, charging, or special certifications needed. Built with durable, kink-resistant materials and a leak-proof design, it ensures long-lasting, efficient performance. Available in multiple lengths, it’s the key to making your HVAC setup truly DIY-friendly.

Series

5th Gen DIY Line Set - R-454B

Compatible Air Handlers 6K, 9K, & 12K 5th Gen DIY

Line Set Length

50 ft

Lineset Fitting Type Quick-Connection

Gross Dimensions

37.2" D x 4.92" H x 37.2" W

Color

White

Color Family

Bronze/Copper Metallic

Refrigerant Type

R-454B

Refrigerant Volume (Oz)

6.07

Liquid Line Size

1/4

Suction Line Size

3/8

Registered Warranty

N/A

Has Batteries

No

Contains Electronics No

Contains Chemicals

Yes

Contains Aerosol

Yes

Contains Compressed Gas

Yes

Proposition 65 Warning

Yes

Restricted States

GU;PR;VI

Net Weight (Lbs)

24

Gross Weight (Lbs)

29.5
MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 1/4" x 3/8", for DIY 6K, 9K, & 12K Mini Split Indoor Air Handler (DIY50-1438C-O) - Image 2

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 1/4" x 3/8", for DIY 6K, 9K, & 12K Mini Split Indoor Air Handler (DIY50-1438C-O) - Image 3

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 1/4" x 3/8", for DIY 6K, 9K, & 12K Mini Split Indoor Air Handler (DIY50-1438C-O) - Image 4

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Description

The MRCOOL 5th Gen DIY Line Set is a required component for installing your MRCOOL DIY ductless mini-split system. This 50-foot model is pre-charged with environmentally friendly R-454B refrigerant and works with MRCOOL's DIY 5th Gen 6K, 9K, and 12K air handler units, featuring 1/4” liquid and 3/8” suction lines.

Equipped with Quick Connect fittings, the line set allows for fast, tool-free installation—no vacuuming, charging, or special certifications needed. Built with durable, kink-resistant materials and a leak-proof design, it ensures long-lasting, efficient performance. Available in multiple lengths, it’s the key to making your HVAC setup truly DIY-friendly.

Series

5th Gen DIY Line Set - R-454B

Compatible Air Handlers 6K, 9K, & 12K 5th Gen DIY

Line Set Length

50 ft

Lineset Fitting Type Quick-Connection

Gross Dimensions

37.2" D x 4.92" H x 37.2" W

Color

White

Color Family

Bronze/Copper Metallic

Refrigerant Type

R-454B

Refrigerant Volume (Oz)

6.07

Liquid Line Size

1/4

Suction Line Size

3/8

Registered Warranty

N/A

Has Batteries

No

Contains Electronics No

Contains Chemicals

Yes

Contains Aerosol

Yes

Contains Compressed Gas

Yes

Proposition 65 Warning

Yes

Restricted States

GU;PR;VI

Net Weight (Lbs)

24

Gross Weight (Lbs)

29.5
MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 1/4" x 3/8", for DIY 6K, 9K, & 12K Mini Split Indoor Air Handler (DIY50-1438C-O) | Home Outlet Direct