MRCOOL 5th Gen 16ft 1/4 x 3/8 Pre-Charged Line Set for DIY 6K, 9K, & 12K Indoor

The MRCOOL 5th Gen 16ft 1/4 x 3/8 Pre-Charged Line Set is designed to make installation of MRCOOL DIY 6K, 9K, and 12K indoor units fast and hassle-free. Pre-charged with R-454B refrigerant, this Quick-Connection line set eliminates the need for vacuum pumps, gauges, or brazing equipment, making it simple for homeowners to connect their system. Built with durable copper and secure fittings, it ensures reliable refrigerant transfer and long-lasting performance.

Please note: This line set is designed for DIY installation and comes pre-charged with R-454B refrigerant for quick, tool-free setup.

MRCOOL 5th Gen 16ft 1/4 x 3/8 Pre-Charged Line Set for DIY 6K, 9K, & 12K Indoor Features

Pre-Charged with R-454B
Factory-charged with eco-friendly R-454B refrigerant, offering efficient performance with lower environmental impact.

Quick-Connection Fittings
Designed for a secure, leak-free connection that eliminates the need for vacuuming or specialized tools.

Durable Copper Tubing
Crafted from high-quality copper for reliable refrigerant flow and long-term durability.

Optimized Size
Features a 1/4" liquid line and 3/8" suction line, tailored for DIY 6K, 9K, and 12K indoor units.

Safety Compliant
Contains compressed gas and meets Proposition 65 safety requirements.

MRCOOL 5th Gen 16ft 1/4 x 3/8 Pre-Charged Line Set for DIY 6K, 9K, & 12K Indoor Applications

• DIY installations – specifically designed for MRCOOL DIY 6K, 9K, and 12K indoor units.

• System extensions – provides a pre-charged option for expanding coverage.

• Upgrades – replace worn or damaged line sets with a fresh, ready-to-use solution.

• Fast setup – Quick-Connection fittings reduce installation time and complexity.

What’s Included?

• 16 ft 1/4 x 3/8 Pre-Charged Line Set (R-454B)

• User Manual

Warranty

• 1-Year Parts Warranty

MRCOOL 5th Gen 16ft 1/4 x 3/8 Pre-Charged Line Set for DIY 6K, 9K, & 12K Indoor Specifications

Frequently-Asked Questions

Is this line set DIY-friendly?
Yes. It is designed for DIY installation with MRCOOL DIY 6K, 9K, and 12K indoor units.

What refrigerant does it use?
This line set comes pre-charged with R-454B refrigerant, a more eco-friendly option than older R-410A refrigerant.

Do I need special tools for installation?
No. The Quick-Connection fittings allow for simple installation without vacuum pumps, gauges, or brazing.

Can I use this line set with other systems?
No. This line set is specifically engineered for MRCOOL DIY 6K, 9K, and 12K indoor units only.