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MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 9K + 9K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,910.00Sale price $10,910.00 Regular price$13,637.50You Save: $2,727.50Unit price per✅ In StockShop NowSave $2,727.50 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 9K + 9K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,929.00Sale price $10,929.00 Regular price$13,661.25You Save: $2,732.25Unit price per✅ In StockShop NowSave $2,732.25 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 9K + 12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,902.00Sale price $10,902.00 Regular price$13,627.50You Save: $2,725.50Unit price per✅ In StockShop NowSave $2,725.50 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 9K + 12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,921.00Sale price $10,921.00 Regular price$13,651.25You Save: $2,730.25Unit price per✅ In StockShop NowSave $2,730.25 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 9K + 12K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,940.00Sale price $10,940.00 Regular price$13,675.00You Save: $2,735.00Unit price per✅ In StockShop NowSave $2,735.00 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 9K + 18K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,960.00Sale price $10,960.00 Regular price$13,700.00You Save: $2,740.00Unit price per✅ In StockShop NowSave $2,740.00 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 12K + 12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,913.00Sale price $10,913.00 Regular price$13,641.25You Save: $2,728.25Unit price per✅ In StockShop NowSave $2,728.25 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 12K + 12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,932.00Sale price $10,932.00 Regular price$13,665.00You Save: $2,733.00Unit price per✅ In StockShop NowSave $2,733.00 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 12K + 12K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,951.00Sale price $10,951.00 Regular price$13,688.75You Save: $2,737.75Unit price per✅ In StockShop NowSave $2,737.75 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 12K + 18K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,971.00Sale price $10,971.00 Regular price$13,713.75You Save: $2,742.75Unit price per✅ In StockShop NowSave $2,742.75 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (9K + 9K + 9K + 9K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,968.00Sale price $10,968.00 Regular price$13,710.00You Save: $2,742.00Unit price per✅ In StockShop NowSave $2,742.00 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (9K + 9K + 9K + 9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,979.00Sale price $10,979.00 Regular price$13,723.75You Save: $2,744.75Unit price per✅ In StockShop NowSave $2,744.75 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (9K + 9K + 9K + 9K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,998.00Sale price $10,998.00 Regular price$13,747.50You Save: $2,749.50Unit price per✅ In StockShop NowSave $2,749.50 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (9K + 9K + 9K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,990.00Sale price $10,990.00 Regular price$13,737.50You Save: $2,747.50Unit price per✅ In StockShop NowSave $2,747.50 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (9K + 9K + 9K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $11,009.00Sale price $11,009.00 Regular price$13,761.25You Save: $2,752.25Unit price per✅ In StockShop NowSave $2,752.25 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (9K + 9K + 9K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $11,028.00Sale price $11,028.00 Regular price$13,785.00You Save: $2,757.00Unit price per✅ In StockShop NowSave $2,757.00 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (9K + 9K + 12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $11,001.00Sale price $11,001.00 Regular price$13,751.25You Save: $2,750.25Unit price per✅ In StockShop NowSave $2,750.25 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (9K + 9K + 12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $11,020.00Sale price $11,020.00 Regular price$13,775.00You Save: $2,755.00Unit price per✅ In StockShop NowSave $2,755.00 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (9K + 9K + 12K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $11,039.00Sale price $11,039.00 Regular price$13,798.75You Save: $2,759.75Unit price per✅ In StockShop NowSave $2,759.75 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (9K + 9K + 18K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $11,058.00Sale price $11,058.00 Regular price$13,822.50You Save: $2,764.50Unit price per✅ In StockShop NowSave $2,764.50
Welcome to the complete MRCOOL Mini Split collection at MRCOOL DIY Direct. Here you’ll find everything from single-zone DIY mini split kits to powerful multi-zone systems—along with pre-charged line sets, wall-mounted and ceiling cassette indoor units, and both DIY and non-DIY options. Easily filter by BTU size, zone configuration, installation type, or generation to find the perfect HVAC solution for your home or business.
What Makes Our Collection Unique?
- DIY Pre-Charged Systems: Save time and money with pre-charged Quick Connect® line sets
- Build Your System: Use our Multi-Zone Customizer Tool to design your own system from 2 to 6 zones
- All Sizes Covered: From 9k to 61k BTU – for everything from bedrooms to full homes
- DIY & Pro Install Options: Choose based on your skill level or installer access
- Fast Shipping & Trusted Support: We're a top-rated MRCOOL dealer with nationwide delivery
How to Choose the Right System
- Not sure what size you need? Try our BTU Sizing Calculator
- Have questions? Contact our expert team
- Explore DIY vs. non-DIY models with different refrigerants (R‑454B vs. R‑410A)
- Choose between wall-mounted, ceiling cassette, or ducted indoor unit styles
Frequently Asked Questions
Can I shop by system type?
Yes! Filter by single or multi-zone, DIY vs. pro-install, BTU size, and indoor unit style using the collection filters.
Are DIY units really that simple to install?
Yes. DIY systems are fully pre-charged and use sealed Quick Connect® fittings. Learn how the pre-charged system works here.
Can I build a complete multi-zone setup myself?
Absolutely. Use our Multi-Zone Customizer Tool to configure up to 6 zones with personalized air handler combinations.
Where can I get help with BTU sizing?
Try our Sizing Guide or contact us directly.
Why choose MRCOOL DIY Direct?
We're a trusted nationwide MRCOOL dealer offering unbeatable support, fast shipping, expert guidance, and extended warranty options. Learn more about us.
Shop All MRCOOL Mini Split Systems – including Single-Zone, Multi-Zone, DIY, and Professional Installation models. Our collection features the newest 5th Generation R‑454B systems, reliable 4th Gen legacy units, and a wide variety of indoor options like wall-mounted air handlers and ceiling cassettes. Easily filter by BTU capacity, number of zones, generation, or install type to find the perfect heating and cooling solution for your space.