MRCOOL DIY 5th Gen 16 ft. 1/4″ x 3/8″ Pre-Charged Quick Connect Line Set (for 6K – 9k – 12k Indoor Units)

The MRCOOL DIY 5th Generation 16 ft. Pre-Charged Line Set is specifically engineered for use with 6,000 – 9,000 – 12,000 BTU MRCOOL DIY indoor air handlers. Featuring 1/4″ liquid and 3/8″ suction lines, this compact line set comes factory pre-charged with eco-friendly R-454B refrigerant and is sealed with MRCOOL’s patented Quick Connect fittings for a true plug-and-play HVAC installation — no special tools, gauges, or certifications required.

This 16 ft. line set is the ideal solution for short-distance installations where the outdoor condenser is located close to the indoor unit. It’s compatible with both single-zone and multi-zone 5th Gen MRCOOL DIY systems that support 6K heads.

 Key Features

• Line Set Length: 16 feet

• Line Sizes: 1/4″ liquid x 3/8″ suction – optimized for 6K – 9K – 12K mini split indoor units

• Refrigerant: Pre-charged with R-454B for fast and eco-conscious setup

• Quick Connect System: MRCOOL’s tool-free connection design ensures fast, leak-free installation

• Durability: UV-resistant white sleeve with rugged copper lines for long-term reliability