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 35ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Mini Split - R454B

MrCool

Sku: DIY35-1412C-O

$510.00

Buy Now, Pay Later

Perfect Companions
Description

35ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor w/ DIY Pro Cable - R454B: The Foundation of Your Eco-Friendly Comfort

Imagine a home where comfort and sustainability go hand-in-hand. This 35ft 1/4 x 1/2 lineset is the crucial component that seamlessly connects your DIY 9K, 12K, or 18K indoor unit with the innovative DIY Pro Cable, ensuring efficient and reliable operation for your R454B refrigerant system. Feel the satisfaction of building a more energy-efficient future, one connection at a time. This lineset provides the robust and precise pathway needed for optimal performance, contributing to a quieter, more comfortable living space while minimizing your environmental footprint. Invest in the core of your sustainable HVAC solution and experience peace of mind knowing you're making a smart choice for your home and the planet.

Why Choose Generation Eco Store for Your Lineset?

At Generation Eco Store, we understand your commitment to a greener lifestyle. We carefully select brands that align with our values, ensuring you receive high-quality, eco-conscious products. Our expertise helps you navigate the options, providing the confidence that your purchase supports both your comfort and a healthier planet. Trust Generation Eco Store to be your partner in building a more sustainable future, one essential component at a time.

Specification Values
Length 35 ft
Diameter (Suction Line) 1/2 inch
Diameter (Liquid Line) 1/4 inch
Compatible Refrigerant R454B
Compatibility DIY 9K, 12K & 18K Indoor Units w/ 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
    Install your AC lineset quickly and easily, saving on professional labor costs and empowering your home comfort.
    Broad System Compatibility
    This lineset is designed to work seamlessly with 9K, 12K, and 18K DIY AC systems.
    Eco-Friendly R454B Ready
    Engineered for modern R454B refrigerant, supporting environmentally conscious cooling solutions for your home.

See it in Action

Have a Question? We Have Answers

What DIY indoor units are compatible with this lineset?
    This lineset is designed for DIY 9K, 12K, and 18K indoor units. It ensures proper connection and operation with these specific models.
What is the length of this lineset?
    This lineset is 35 feet long. This length provides flexibility for various installation setups.
What refrigerant type is this lineset compatible with?
    This lineset is designed for use with R454B refrigerant. Please ensure your system also uses R454B for proper compatibility.
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