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MrCool 50ft 3/8 x 5/8 Lineset with DIY Pro Cable for 24K & 36K DIY Indoor Units - R454B.   At  Generation Eco Store
MrCool 35' R-454B No-Vac Lineset.   At  Generation Eco Store
MrCool 35' R-454B No-Vac Lineset.   At  Generation Eco Store
MrCool 50ft 3/8 x 5/8 Lineset with DIY Pro Cable for 24K & 36K DIY Indoor Units - R454B.   At  Generation Eco Store
MrCool 35' R-454B No-Vac Lineset.   At  Generation Eco Store
MrCool 35' R-454B No-Vac Lineset.   At  Generation Eco Store

MrCool 50ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor Mini Split - R454B

MrCool

Sku: DIY50-1412C-O

$599.00

Buy Now, Pay Later

Perfect Companions
Description

50ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor w/ DIY Pro Cable - R454B: The Foundation for Your Comfort and Energy Savings

Imagine a home where comfort is effortless and energy bills are lower. Our 50ft 1/4 x 1/2 Lineset is the crucial connection that makes your DIY mini-split system a reality, ensuring efficient performance for your 9K, 12K, or 18K indoor unit. Crafted for durability and optimized for R454B refrigerant, this lineset, complete with a DIY Pro Cable, simplifies your installation process, saving you time and money. Feel the satisfaction of a job well done, knowing you've invested in a system that delivers consistent, reliable cooling and heating for years to come. This lineset is designed to minimize leaks and maximize efficiency, giving you peace of mind and a truly comfortable living space.

Generation Eco Store: Your Trusted Partner in Sustainable Home Comfort

At Generation Eco Store, we understand the importance of making informed choices for your home and the planet. We meticulously select products like this lineset to ensure they meet our high standards for quality, efficiency, and sustainability. We are committed to providing you with the knowledge and support you need to confidently embark on your DIY climate control journey, empowering you to create a more eco-friendly and comfortable living environment.

Specification Values
Length 50ft
Line Sizes 1/4 x 1/2
Compatibility DIY 9K, 12K & 18K Indoor Units
Refrigerant Type R454B
Included DIY Pro Cable
Specifications & Dimension
What's in the Box?
Guides & More
Shipping Policy
  • Free & Fast Shipping
    We offer free shipping on most MRCOOL DIY Lineset orders  across the lower 48 states, using the most reliable freight partners. Orders typically ship within 5 business days, with tracking provided within 24 hours of dispatch.
  • Tracking & Delivery Scheduling
    You’ll receive an order confirmation email immediately after placing your order. Tracking details are usually shared within 3–5 business days. Please review your shipping address carefully—corrections after shipment may incur a fee.
  • Important Shipping Notes
    Ensure your location can accommodate freight deliveries. Additional charges may apply for access-restricted areas, remote locations, or deliveries requiring special transport (e.g., ferry or plane).

    See our full Shipping Policy here
Return Policy
  • Hassle-Free Returns
    We offer a 30-day return window from the date you receive your item. Items must be unused, in original packaging, and accompanied by proof of purchase. Some items may incur a 15–25% restocking fee, especially larger freight-shipped products. Cancellations made before shipping will incur a 3-5% processing fee.
  • Damaged or Special Orders
    Please report any damages within 24 hours of delivery. Installed or opened items may not be returnable. Select brands such as Victron and Pytes may be non-returnable based on manufacturer policies.

    See our full Return Policy here

"What we'd tell a friend"

    Easy DIY Installation
    This lineset is designed for simple, do-it-yourself setup, saving you money on professional installation costs.
    Perfect for Multiple AC Sizes
    Versatile 50ft lineset works with 9K, 12K, and 18K indoor units, making it highly adaptable for various DIY AC projects.
    Eco-Friendly Refrigerant Ready
    Optimized for R454B refrigerant, this lineset supports more environmentally conscious air conditioning solutions.

See it in Action

Have a Question? We Have Answers

What HVAC systems is this lineset compatible with?
    This lineset is designed for DIY 9K, 12K, and 18K indoor units. It is compatible with systems using R454B refrigerant.
What are the dimensions of the lineset?
    The lineset is 50 feet long with 1/4 inch and 1/2 inch line diameters.
Does this lineset include a DIY Pro Cable?
    Yes, this lineset comes with a DIY Pro Cable for easier installation.
What is the warranty on Lineset?

Warranty for product varies based on the brand and the product. For some of the warranties, https://generationecostore.com/pages/warranty view OEM warranty policy. For any questions, please reach out to us at hello@generationecostore.com 

Can I return the Lineset if I'm not satisfied?

We offer a 30-day return window from the date you receive your item. To be eligible for a return, the item must be unused, in its original packaging, and include proof of purchase.

Your Satisfaction is Our Priority

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Warranties

We stand behind the quality of our products and are backed by manufacturers' warranties

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Our support team is available to assist you with any questions or concerns you have

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