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

The MRCOOL DIY 5th Gen 50 Ft. Pre-Charged Quick Connect Line Set with DIY Pro Cable offers a seamless and efficient solution for extending the installation distance between your indoor and outdoor units. Specifically designed for DIY 6K, 9K, and 12K BTU indoor air handlers, this line set comes pre-charged with R-454B refrigerant and uses MRCOOL’s Quick Connect® fittings to eliminate the need for vacuuming or charging. With a durable 50-foot length and weather-resistant DIY Pro Cable included, it’s the perfect companion for flexible, user-friendly installations.

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

Pre-Charged Line Set – Comes sealed and factory pre-filled with R-454B refrigerant, eliminating the need for charging on-site.

Extended Length – Offers 50 feet of line, providing flexibility for longer, more complex installations where units are placed far apart.

Quick Connect Fittings – Equipped with tool-free, leak-proof connections that simplify the installation process for DIYers.

Line Size Compatibility – Built for 1/4" x 3/8" connections, specifically suited for 6K, 9K, and 12K MRCOOL indoor units.

DIY Pro Cable Included – Comes with a high-quality, weather-resistant communication and power cable for reliable system operation.

Weather-Resistant Insulation – Features a durable outer jacket that protects against UV exposure, moisture, and outdoor conditions.

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

• Compact system installations – Designed for use with 6K, 9K, and 12K MRCOOL indoor mini split air handlers

• Room-to-room expansion – Great for setups where units are spaced out across larger rooms or zones

• Multi-story buildings – Useful in homes or offices where the indoor and outdoor units are on different levels

• Detached buildings – Ideal for extending system reach to garages, sheds, or other exterior structures

• Custom layout flexibility – Supports installations that require a longer run without refrigerant loss

What’s Included?

• 50 Ft. Line Set (1/4" x 3/8")

• DIY Pro Communication and Power Cable

• Pre-installed Quick Connect fittings

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 without a vacuum pump?
Yes. The MRCOOL Quick Connect® fittings allow for vacuum-free installation, preserving refrigerant integrity and simplifying the process.

What size systems is this compatible with?
This line set is designed for use with MRCOOL 5th Gen DIY 6K, 9K, and 12K BTU indoor air handlers.

Does it come pre-charged with refrigerant?
Yes. The line set is factory pre-charged with R-454B refrigerant, ready for use out of the box.

Can I use this for a different MRCOOL unit size?
No. This line set is only compatible with 6K–12K BTU MRCOOL DIY 5th Gen air handlers and should not be used with other capacities.