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

The MRCOOL DIY 5th Gen 50 Ft. Line Set with DIY Pro Cable is a factory-pre-charged, Quick Connect solution for extending the reach of your MRCOOL DIY 18K Mini Split indoor air handler. Perfect for installations requiring longer runs between indoor and outdoor units, this line set maintains system integrity and refrigerant charge, eliminating the need for vacuuming or charging during install. It includes 1/4" x 1/2" line dimensions and a durable, weather-ready DIY Pro cable for secure communication and power between units.

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

Pre-Charged Line Set – Comes charged with R-454B refrigerant and sealed from the factory, ensuring no refrigerant loss during connection.

Extended Length – 50 feet of line gives you the flexibility to position units farther apart for more complex layouts or detached structures.

Quick Connect Fittings – MRCOOL’s patented fittings allow for a tool-free, leak-free installation without the need for a licensed HVAC tech.

1/4" x 1/2" Line Size – Specifically sized for 18K BTU indoor air handlers, ensuring proper refrigerant flow and performance.

Durable DIY Pro Cable – Includes high-grade, weather-resistant communication and power cable for seamless system operation.

Flexible Insulation Jacket – Insulated line set is built with a UV and weather-resistant jacket to protect the system from harsh outdoor conditions.

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

• Long-Distance Installations – Perfect for running between indoor and outdoor units in larger homes or offices

• Detached Structures – Great for setups like garages, shops, or outbuildings needing extended reach

• Custom Layouts – Ideal for non-linear or multi-story configurations where standard line sets are too short

• DIY Installations – Designed for homeowners completing their own mini split setups without vacuuming

• System Upgrades – Compatible with MRCOOL 5th Gen DIY 18K BTU indoor air handlers needing replacement or upgrade

What’s Included?

• 50 Ft. Line Set (1/4" x 1/2")

• DIY Pro Communication Cable

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

Frequently-Asked Questions

Can I install this line set myself?
Yes, this line set is specifically designed for DIY installation using MRCOOL’s Quick Connect technology. No vacuuming, brazing, or charging is required.

What systems is this compatible with?
This product is built for MRCOOL 5th Gen DIY 18K BTU indoor air handlers and will not work properly with incompatible units or different line sizes.

Does it come with refrigerant?
Yes, the line set is factory pre-charged with R-454B refrigerant, sealed, and ready to connect upon installation.

Can I use this for a second air handler?
This line set is meant for one 18K air handler. For multi-zone systems, you will need a compatible setup and additional accessories specific to your unit model.