

🚚 Fast Delivery Times
MRCOOL DIY 5th Gen - 1/4" x 1/2" Pre-Charged Quick Connect Line Set with Line Set Length Options (9K, 12K & 18K Indoor - R454B)
LINE SET LENGTH:
- 16 ft. (DIY16-1412-O)
- 25 ft. (DIY25-1412-O)
- 25 ft. with DIY Pro Cable (DIY25-1412C-O)
- 35 ft. with DIY Pro Cable (DIY35-1412C-O)
- 50 ft. with DIY Pro Cable (DIY50-1412C-O)
Upgrade your MRCOOL DIY® mini-split system with the 5th Gen Pre-Charged Quick Connect Line Set. Specially designed for compatibility with 9K, 12K, and 18K indoor units, these line sets come pre-charged with eco-friendly R-454B refrigerant and feature MRCOOL's signature Quick Connect fittings for fast, tool-free installation.
Whether you're a homeowner or HVAC professional, these line sets are a must-have for an efficient, clean, and reliable installation of your MRCOOL DIY ductless mini-split system. Available in four different lengths and two options with the DIY Pro Cable for added convenience.
FEATURES:
- Compatible with MRCOOL DIY® 5th Gen 9K, 12K, and 18K air handler unit
- Pre-charged with R-454B environmentally friendly refrigerant
- 1/4” liquid line and 1/2” suction line
- Quick Connect fittings for tool-free, fast installation
- No vacuuming, charging, or special certifications required
- White finish with bronze/copper metallic components for a professional look
- Built with durable, kink-resistant, and leak-proof materials
- Available with or without DIY Pro Cable
- Ideal for: DIY homeowners looking for hassle-free mini-split installation,
HVAC professionals seeking efficient setup solutions, Ensuring long-lasting and clean refrigerant transfer
NOTE: The line set is a required component for installing MRCOOL DIY® mini-split systems.
SPECIFICATIONS:
Series | 5th Gen DIY Line Set - R-454B |
---|---|
Equipment Type | R-454B Charged Line Set |
Compatible Indoor Units | 9K, 12K & 18K (5th Gen) |
Line Set Length | 16 ft. | 25 ft. | 35 ft. | 50 ft. |
Liquid Line Size | 1/4" |
Suction Line Size | 1/2" |
Line Set Fitting Type | Quick-Connection |
Refrigerant Type | R-454B |
Refrigerant Volume | 2.12 oz | 2.12 oz | 3.46 oz | 6.07 oz |
Net Weight | 8.8 lbs | 12.1 lbs | 18.3 lbs | 26.7 lbs |
Contains Chemicals | Yes |
Contains Aerosol | Yes |
Contains Compressed Gas | Yes |
Proposition 65 Warning | Yes |
Restricted States | GU, PR, VI |
Batteries Required | No |
Contains Electronics | No |