Welcome to our full MRCOOL Mini Split collection — featuring everything from **single-zone DIY kits** to **multi-zone systems**, **pre-charged ceiling cassettes**, and **professional-grade non-DIY units**. Every system is backed by robust support, fast shipping, and strong warranty coverage.

All-In-One Overview

• DIY vs. Non-DIY Kits: DIY units come pre-charged with R‑454B refrigerant; professional units are ideal for licensed installers.
• Single-Zone Options (9k–36k BTU): Great for focused spaces like bedrooms and offices.
• Multi-Zone Systems (2–6 zones, 18k–61k BTU): Perfect for whole-home zoning flexibility.
• Indoor Unit Styles: Choose between wall-mounted units, ceiling cassettes, and concealed ducted models.
• Latest 5th Gen Models: EPA-compliant R‑454B refrigerant, high SEER ratings, and quick-connect installation.

What to Consider When Choosing

• Installation Type: DIY pre-charged systems vs. professional-installed non-DIY units
• BTU Size & Room Coverage: Use our BTU Sizing Calculator to determine your needs
• R‑454B vs. R‑410A: Newer Gen 5 units use eco-friendly R‑454B; older units use R‑410A
• Wiring & Controls: Choose models compatible with Wi-Fi, app control, or traditional remote systems
• Warranty & Support: 5-year parts / 7-year compressor standard; extended plans available

FAQs

Can I shop by system type?
You can filter this page by DIY vs. non-DIY, single vs. multi-zone, indoor styles, and capacity ranges.

Are DIY units easy to install?
Yes! DIY models are pre-charged with sealed Quick Connect fittings—no vacuum pump, refrigerant licenses, or brazing required.

What refrigerant is used?
All 5th Gen units come with eco-friendly R-454B, while older models use R-410A.

Do I need to choose the latest model?
5th Gen models are future-proofed for efficiency and EPA compliance. Legacy models remain available for direct replacements.

Where can I get help with sizing?
Use our size calculator or contact our expert support.