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MRCOOL DIY 3/8" x 5/8" Pre-Charged Line Set for 24K & 36K BTU Units
The MRCOOL DIY 3/8" x 5/8" Pre-Charged Line Set makes DIY mini‑split installation quick and easy. This line set comes pre‑filled with R‑454B refrigerant and features simple QuickConnect fittings — no special HVAC tools or vacuum pump required.
Designed specifically for use with MRCOOL DIY 24K & 36K BTU indoor air handlers, this line set provides flexibility in placing your indoor and outdoor units, while ensuring reliable performance and efficient cooling and heating.
What's Included:
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16‑ft/25-ft/35-ft/50-ft line set with 3/8" liquid line and 5/8" suction line
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QuickConnect fittings for tool‑free installation
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Pre‑charged with eco‑friendly R‑454B refrigerant
- this 16-ft/25-ft sets do NOT come with communication wire. However, if you are purchasing a MRCOOL DIY system with an Air Handler, a 25 feet communication wire is included in the Air Handler box.
- The 35ft and 50ft line sets include a DIY Pro Cable communication wire in the box.
- The 66ft and 75ft line set include Couplers and DIY Pro Cable communication wire in the box.
Key Benefits:
✅ Pre-Charged & Ready – No vacuuming or refrigerant handling needed
✅ QuickConnect Fittings – Simple push‑to‑connect installation
✅ Perfect for 18K BTU Units – Designed for MRCOOL DIY 24K & 36K BTU indoor air handlers
✅ Durable Construction – White UV‑resistant jacket with copper tubing inside
Compatibility Note: Only compatible with MRCOOL DIY 24K & 36K BTU systems. Do not use with other brands or non‑DIY MRCOOL units.
Ideal for extending the distance between your indoor and outdoor units, or as a replacement line set for existing DIY systems.
Order yours today and finish your DIY installation faster!