MRCOOL DIY® 5th Gen 16 ft. 3/8" x 5/8" Pre-Charged Quick Connect Line Set (for 24K & 36K Indoor Units)

MRCOOL DIY® 5th Gen 16 ft. 3/8" x 5/8" Pre-Charged Quick Connect Line Set (for 24K & 36K Indoor Units)

The MRCOOL DIY® 5th Generation 16 ft. Pre-Charged Line Set is a compact, reliable solution for installations where shorter line lengths are needed. Featuring 3/8" liquid and 5/8" suction lines, this line set is factory pre-charged with eco-friendly R-454B refrigerant and sealed with MRCOOL’s trusted Quick Connect fittings for a fast, tool-free installation.

Perfectly matched for use with 24,000 BTU and 36,000 BTU indoor air handlers, this 16 ft. line set is compatible with all MRCOOL DIY 5th Gen single-zone systems, and also works with supported multi-zone condensers where shorter distances between indoor and outdoor units apply.

Key Features

• Length: 16 feet – ideal for close-proximity HVAC setups
• Line Sizes: 3/8" liquid x 5/8" suction – for 24K & 36K BTU indoor units
• Pre-Charged with R-454B Refrigerant – no need for gauges or vacuum pumps
• Quick Connect Fittings – DIY-friendly and certified leak-proof under pressure
• Durable Construction – Copper lines with insulated white UV-resistant sleeve

• System Compatibility:

MRCOOL DIY 5th Gen 24K & 36K single-zone systems

MRCOOL Multi-Zone Systems: Multi3-18K, Multi4-27K, Multi5-36K, Multi6-48K, Multi6-55K
(For multi-zone, line set must match the indoor air handler BTU rating.)

Installation Notes

• Ideal for installations where the condenser is mounted close to the air handler.
• If extending beyond 25 ft., use a coupler and longer Pro Cable to connect additional line sets.
• Follow MRCOOL installation guidelines for torque specs and system pressurization.

Order from MRCOOL DIY Direct — the most trusted nationwide retailer for MRCOOL parts, systems, and accessories. This 16 ft. pre-charged line set makes DIY HVAC projects faster, easier, and more professional.