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MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 6K + 9K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,671.00Sale price $10,671.00 Regular price$13,338.75You Save: $2,667.75Unit price per✅ In StockShop NowSave $2,667.75 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 6K + 9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,682.00Sale price $10,682.00 Regular price$13,352.50You Save: $2,670.50Unit price per✅ In StockShop NowSave $2,670.50 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 6K + 9K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,701.00Sale price $10,701.00 Regular price$13,376.25You Save: $2,675.25Unit price per✅ In StockShop NowSave $2,675.25 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 6K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,693.00Sale price $10,693.00 Regular price$13,366.25You Save: $2,673.25Unit price per✅ In StockShop NowSave $2,673.25 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 6K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,712.00Sale price $10,712.00 Regular price$13,390.00You Save: $2,678.00Unit price per✅ In StockShop NowSave $2,678.00 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 6K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,731.00Sale price $10,731.00 Regular price$13,413.75You Save: $2,682.75Unit price per✅ In StockShop NowSave $2,682.75 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 9K + 9K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,770.00Sale price $10,770.00 Regular price$13,462.50You Save: $2,692.50Unit price per✅ In StockShop NowSave $2,692.50 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 9K + 9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,781.00Sale price $10,781.00 Regular price$13,476.25You Save: $2,695.25Unit price per✅ In StockShop NowSave $2,695.25 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 9K + 9K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,800.00Sale price $10,800.00 Regular price$13,500.00You Save: $2,700.00Unit price per✅ In StockShop NowSave $2,700.00 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 9K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,792.00Sale price $10,792.00 Regular price$13,490.00You Save: $2,698.00Unit price per✅ In StockShop NowSave $2,698.00 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 9K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,811.00Sale price $10,811.00 Regular price$13,513.75You Save: $2,702.75Unit price per✅ In StockShop NowSave $2,702.75 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 9K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,830.00Sale price $10,830.00 Regular price$13,537.50You Save: $2,707.50Unit price per✅ In StockShop NowSave $2,707.50 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,803.00Sale price $10,803.00 Regular price$13,503.75You Save: $2,700.75Unit price per✅ In StockShop NowSave $2,700.75 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,822.00Sale price $10,822.00 Regular price$13,527.50You Save: $2,705.50Unit price per✅ In StockShop NowSave $2,705.50 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 12K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,841.00Sale price $10,841.00 Regular price$13,551.25You Save: $2,710.25Unit price per✅ In StockShop NowSave $2,710.25 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 6K + 18K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,861.00Sale price $10,861.00 Regular price$13,576.25You Save: $2,715.25Unit price per✅ In StockShop NowSave $2,715.25 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 9K + 9K + 9K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,869.00Sale price $10,869.00 Regular price$13,586.25You Save: $2,717.25Unit price per✅ In StockShop NowSave $2,717.25 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 9K + 9K + 9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,880.00Sale price $10,880.00 Regular price$13,600.00You Save: $2,720.00Unit price per✅ In StockShop NowSave $2,720.00 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 9K + 9K + 9K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,899.00Sale price $10,899.00 Regular price$13,623.75You Save: $2,724.75Unit price per✅ In StockShop NowSave $2,724.75 -
MRCOOL DIY 5th Gen Multi-Zone 5-Zone 55,000 BTU 22 SEER2 (6K + 9K + 9K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $10,891.00Sale price $10,891.00 Regular price$13,613.75You Save: $2,722.75Unit price per✅ In StockShop NowSave $2,722.75
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.