Upgrade your MRCOOL system with this 35 ft. DIY 5th Generation Pre-Charged Line Set, built for easy installation, dependable performance, and total compatibility with 24,000 BTU and 36,000 BTU indoor air handlers. This line set features 3/8″ liquid and 5/8″ suction lines, pre-filled with eco-friendly R-454B refrigerant, and includes the DIY Pro Cable in matching length for a complete and seamless setup.
Designed for use with MRCOOL DIY 5th Gen single-zone systems and compatible with select multi-zone models, this 35-foot line set is ideal for medium-range installs where 25′ isn’t quite enough.
Key Features
Line Set Length: 35 feet
Line Sizes: 3/8″ liquid x 5/8″ suction – specifically for 24K & 36K indoor units
Pre-Charged with R-454B – No vacuuming or refrigerant handling required
Includes 35 ft. DIY Pro Cable – Control wire included for plug-and-play installation
Quick Connect Fittings – Patented design makes it easy for homeowners and pros alike
Durable & Weather Resistant – Protected with a white UV-resistant sleeve for a clean, professional appearance
