Skip to content
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 25ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor Units - R454B

MrCool

Sku: DIY25-1412C-O

$436.00

Buy Now, Pay Later

Perfect Companions
Description

25ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor w/ DIY Pro Cable - R454B: Achieve Perfect Climate Control with Ease

Transform your home into a haven of comfort with our 25ft 1/4 x 1/2 Lineset. Designed specifically for DIY 9K, 12K & 18K Indoor units and featuring the innovative DIY Pro Cable, this lineset simplifies your HVAC installation. Experience the satisfaction of a professional-grade setup without the hassle, ensuring optimal performance and energy efficiency for your mini-split system. Enjoy consistent, comfortable temperatures year-round and take pride in a smart, sustainable choice for your home.

Why Choose Generation Eco Store for Your Lineset?

At Generation Eco Store, we understand your commitment to smart, sustainable living. We carefully curate products like this high-quality lineset to ensure they meet our rigorous standards for performance and environmental responsibility. Our expert support team is here to guide you, making your DIY installation seamless and empowering you to create a more efficient and comfortable home with confidence.

Specification Values
Length 25ft
Line Sizes 1/4 x 1/2
Compatibility DIY 9K, 12K & 18K Indoor Units
Features Integrated DIY Pro Cable, R454B Refrigerant Ready
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"

    DIY-Friendly Install
    This lineset is designed for easy DIY installation with 9K, 12K, and 18K indoor units, saving you time and professional costs.
    Reliable Performance
    Get consistent, efficient cooling with a high-quality lineset engineered for R454B refrigerant, ensuring optimal AC operation.
    Complete Kit
    The included DIY Pro Cable simplifies connections, making your air conditioning setup hassle-free and complete.

See it in Action

Have a Question? We Have Answers

What DIY systems are compatible with this lineset?
    This lineset is designed for DIY 9K, 12K, and 18K indoor units. It is compatible with systems using R454B refrigerant.
What is the length of this lineset?
    This lineset is 25 feet long.
Does this lineset include a DIY Pro Cable?
    Yes, this lineset comes with a DIY Pro Cable.
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

Secure Shopping

Our store uses SSL encryption to ensure your payment information is always secure

Free Shipping

Free shipping on orders over $500 (exceptions apply), get your purchase delivered quickly and hassle-free

Warranties

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

Customer Support

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

You May Also Like

Rich Solar 200 Watt Solar Kit for Solar Generators.   At  Generation Eco Store
-54%
Rich Solar 200 Watt Solar Kit for Solar Generators.   At  Generation Eco Store

Rich Solar 200 Watt Solar Kit for Solar Generators

$264.31
$399.99
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
-54%
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store
Rich Solar Mega 200 Watt 12 Volt Solar Panel.   At  Generation Eco Store

Rich Solar Mega 200 Watt 12 Volt Solar Panel

$239.99
$299.99
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
-54%
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store
Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit.   At  Generation Eco Store

Rich Solar Mega 200 Watt Briefcase Portable Solar Charging Kit

$279.00
$562.49
Rich Solar-Alpha 5 Server Lithium Iron Phosphate Battery.   At  Generation Eco Store
Rich Solar-Alpha 5 Server Lithium Iron Phosphate Battery.   At  Generation Eco Store
Rich Solar-Alpha 5 Server Lithium Iron Phosphate Battery.   At  Generation Eco Store
Rich Solar-Alpha 5 Server Lithium Iron Phosphate Battery.   At  Generation Eco Store
Rich Solar-Alpha 5 Server Lithium Iron Phosphate Battery.   At  Generation Eco Store
Rich Solar-Alpha 5 Server Lithium Iron Phosphate Battery.   At  Generation Eco Store
-54%
Rich Solar-Alpha 5 Server Lithium Iron Phosphate Battery.   At  Generation Eco Store
Rich Solar-Alpha 5 Server Lithium Iron Phosphate Battery.   At  Generation Eco Store
Rich Solar-Alpha 5 Server Lithium Iron Phosphate Battery.   At  Generation Eco Store
Rich Solar-Alpha 5 Server Lithium Iron Phosphate Battery.   At  Generation Eco Store
Rich Solar-Alpha 5 Server Lithium Iron Phosphate Battery.   At  Generation Eco Store
Rich Solar-Alpha 5 Server Lithium Iron Phosphate Battery.   At  Generation Eco Store

Rich Solar-Alpha 5 Server Lithium Iron Phosphate Battery

$1,599.99
$2,373.75
Rich Solar-Mega 100 Slim Solar Panel.   At  Generation Eco Store
Rich Solar-Mega 100 Slim Solar Panel.   At  Generation Eco Store
Rich Solar-Mega 100 Slim Solar Panel.   At  Generation Eco Store
-54%
Rich Solar-Mega 100 Slim Solar Panel.   At  Generation Eco Store
Rich Solar-Mega 100 Slim Solar Panel.   At  Generation Eco Store
Rich Solar-Mega 100 Slim Solar Panel.   At  Generation Eco Store

Rich Solar-Mega 100 Slim Solar Panel

$129.99
$162.49
Rich Solar Mounting Hardware Z Brackets.   At  Generation Eco Store
Rich Solar Mounting Hardware Z Brackets.   At  Generation Eco Store
Rich Solar Mounting Hardware Z Brackets.   At  Generation Eco Store
Rich Solar Mounting Hardware Z Brackets.   At  Generation Eco Store
Rich Solar Mounting Hardware Z Brackets.   At  Generation Eco Store
-54%
Rich Solar Mounting Hardware Z Brackets.   At  Generation Eco Store
Rich Solar Mounting Hardware Z Brackets.   At  Generation Eco Store
Rich Solar Mounting Hardware Z Brackets.   At  Generation Eco Store
Rich Solar Mounting Hardware Z Brackets.   At  Generation Eco Store
Rich Solar Mounting Hardware Z Brackets.   At  Generation Eco Store

Rich Solar Mounting Hardware Z Brackets

$12.99
$16.24
Rich Solar Cable Entry Housing.  Black At  Generation Eco Store
Rich Solar Cable Entry Housing.   At  Generation Eco Store
Rich Solar Cable Entry Housing.  White At  Generation Eco Store
Rich Solar Cable Entry Housing.   At  Generation Eco Store
-54%
Rich Solar Cable Entry Housing.  Black At  Generation Eco Store
Rich Solar Cable Entry Housing.   At  Generation Eco Store
Rich Solar Cable Entry Housing.  White At  Generation Eco Store
Rich Solar Cable Entry Housing.   At  Generation Eco Store

Rich Solar Cable Entry Housing

$12.00
$16.24

Real Stories From Real Customers

Check Out Our Instagram

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare