MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 3/8" x 5/8", for DIY 24K & 36K Mini Split Indoor Air Handler
MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 3/8" x 5/8", for DIY 24K & 36K Mini Split Indoor Air Handler
MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 3/8" x 5/8", for DIY 24K & 36K Mini Split Indoor Air Handler
MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 3/8" x 5/8", for DIY 24K & 36K Mini Split Indoor Air Handler

MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 3/8" x 5/8", for DIY 24K & 36K Mini Split Indoor Air Handler

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MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 3/8" x 5/8", for DIY 24K & 36K Mini Split Indoor Air Handler

GeoCool

MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 3/8" x 5/8", for DIY 24K & 36K Mini Split Indoor Air Handler

$881.67 $662.00
MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 3/8" x 5/8", for DIY 24K & 36K Mini Split Indoor Air Handler
MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 3/8" x 5/8", for DIY 24K & 36K Mini Split Indoor Air Handler
MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 3/8" x 5/8", for DIY 24K & 36K Mini Split Indoor Air Handler
MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 3/8" x 5/8", for DIY 24K & 36K Mini Split Indoor Air Handler

GeoCool

MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable, 3/8" x 5/8", for DIY 24K & 36K Mini Split Indoor Air Handler

$881.67 $662.00
  • Description
  • Why Buy From Us

MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set

The MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable is the ultimate solution for longer-distance MRCOOL mini split installations. Designed for use with 24K and 36K 5th Gen DIY air handlers, this line set comes factory pre-charged with R-454B refrigerant and equipped with patented Quick Connect fittings. It also includes a rugged DIY Pro Cable for seamless power and communication between units. Whether you're installing across a large home, detached garage, or second-story layout, this 50-foot line set delivers performance, convenience, and reliability without the need for vacuuming or professional tools.

MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set Features

Pre-Charged with R-454B – Factory-sealed and prefilled with R-454B refrigerant for a fast, clean, and safe connection process.

Quick Connect Fittings – Equipped with MRCOOL’s proprietary tool-free fittings that enable a secure, leak-proof seal without vacuuming.

50 Ft. Line Length – Provides extended reach for installations with greater distances between indoor and outdoor units.

Heavy-Duty DIY Pro Cable – Includes a durable, weather-resistant communication and power cable, pre-sized and matched to system requirements.

Sized for High-Capacity Units – Designed for MRCOOL 24K & 36K 5th Gen air handlers, with 3/8" liquid and 5/8" suction line compatibility.

UV & Weather Resistant Jacket – Features a rugged outer layer to protect against sunlight, moisture, and abrasion in outdoor environments.

MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set Applications

  • Extended installations – Ideal for setups requiring long-distance connections between indoor and outdoor units

  • Second-story or basement units – Works well in homes with vertical separation between air handler and condenser

  • Detached structures – Excellent for garages, workshops, or outbuildings requiring extended reach

  • Large room coverage – Supports installations in open-plan areas or wide structural layouts

  • DIY retrofits or replacements – A reliable solution for upgrading existing MRCOOL line sets

What’s Included?

  • 50 Ft. Line Set (3/8" x 5/8")

  • DIY Pro Communication & Power Cable

  • Pre-installed Quick Connect fittings

MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set Specifications

Series

5th Gen DIY Line Set - R-454B

Compatible Air Handlers

24K & 36K 5th Gen DIY

Line Set Length

50 ft

Line Fitting Type

Quick-Connection

Gross Dimensions

37.2" D x 4.92" H x 37.2" 

Color

White

Color Family

Bronze/Copper Metallic

Refrigerant Type

R-454B

Refrigerant Volume 

10.02

Liquid Line Size

3/8

Suction Line Size

5/8

Registered Warranty

N/A

Has Batteries

No

Contains Electronics

No

Contains Aerosol

Yes

Contains Compressed Gas

Yes

Proposition 65 Warning

Yes

Restricted States

GU;PR;VI

Net Weight (Lbs)

31.3

Gross Weight (Lbs)

36.8

Frequently-Asked Questions

Is this line set compatible with smaller MRCOOL systems?
No. This specific model is designed only for 24K and 36K MRCOOL 5th Gen indoor air handlers. It will not work with smaller units like 12K or 9K.

Does it come prefilled with refrigerant?
Yes. It is factory pre-charged with R-454B, sealed and ready to connect—no additional refrigerant or vacuuming required.

Can I use this line set if I only need 30 or 40 feet?
No. The full 50-foot length must be used to preserve the sealed refrigerant system. It should not be cut or altered.

Is it hard to install for a first-time DIYer?
This product is designed for DIY-friendly installation, especially when paired with a MRCOOL DIY condenser and air handler. However, if you're unsure, a certified HVAC installer can ensure everything is connected properly.

Why Choose Green Vista Living


At Green Vista Living, we’re passionate about providing top-quality renewable energy and eco-friendly products that not only enhance your life but also help protect the planet. We’ve built our business with one mission in mind: to be the go-to destination for renewable energy solutions, outdoor gear, and off-grid supplies. When you shop with us, you’re not just getting innovative products—you’re joining a community that’s committed to sustainability.

We Put Our Customers First


As a small, dedicated team, we care deeply about your experience. Unlike large, faceless online companies, Green Vista Living offers a personal touch in everything we do. We're here for you from start to finish—whether you need product advice, support after a purchase, or just have questions. Our knowledgeable customer service team is always just a phone call or email away, ready to assist you in any way possible.

We Share Your Passion for the Planet


Our love for the outdoors and sustainable living runs deep. Most of our team hails from the mountains of Colorado, where renewable energy and the environment are part of daily life. So when you call Green Vista Living, you’ll speak directly with an expert who understands both the technical side of renewable products and the lifestyle they support. Whether you’re looking for solar generators, EV chargers, or any of our eco-friendly offerings, you can trust us to guide you with expertise and passion.

Trusted Industry Experts


Our close partnerships with the best brands in renewable energy and outdoor gear give us insider knowledge that you won’t find anywhere else. We’ve taken the time to carefully select products that stand out for their quality and reliability. At Green Vista Living, we believe in understanding our products inside and out so that we can help you make the right choice with confidence.

More Reasons to Love Green Vista Living


Price Match Guarantee: Thanks to our partnerships, we offer the best prices around. If you find a better deal, we’ll refund the difference.


Free Shipping: We offer free shipping on most orders to the lower 48 U.S. states, making your shopping experience even easier.


100% Secure Ordering: Our site uses SSL Encryption technology to keep your payment and personal information safe and secure.


Volume Discounts: For large orders, we’re happy to provide special pricing—just reach out for a custom quote.


Authorized Dealer: As an authorized dealer for all our brands, you’ll receive full manufacturer warranties with every order.


At Green Vista Living, we aim to make your renewable energy and outdoor experience as seamless and enjoyable as possible. With our unmatched customer service, expertise, and dedication to quality, you can shop with confidence, knowing you’re supporting a company that’s as committed to the planet as you are.

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.

Let customers speak for us

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