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MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (6K + 6K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,331.00Sale price $7,331.00 Regular price$9,163.75You Save: $1,832.75Unit price per✅ In StockShop NowSave $1,832.75 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (6K + 6K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,342.00Sale price $7,342.00 Regular price$9,177.50You Save: $1,835.50Unit price per✅ In StockShop NowSave $1,835.50 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (6K + 6K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,373.00Sale price $7,373.00 Regular price$9,216.25You Save: $1,843.25Unit price per✅ In StockShop NowSave $1,843.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (6K + 9K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,430.00Sale price $7,430.00 Regular price$9,287.50You Save: $1,857.50Unit price per✅ In StockShop NowSave $1,857.50 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (6K + 9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,441.00Sale price $7,441.00 Regular price$9,301.25You Save: $1,860.25Unit price per✅ In StockShop NowSave $1,860.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (6K + 9K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,472.00Sale price $7,472.00 Regular price$9,340.00You Save: $1,868.00Unit price per✅ In StockShop NowSave $1,868.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (6K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,452.00Sale price $7,452.00 Regular price$9,315.00You Save: $1,863.00Unit price per✅ In StockShop NowSave $1,863.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (6K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,483.00Sale price $7,483.00 Regular price$9,353.75You Save: $1,870.75Unit price per✅ In StockShop NowSave $1,870.75 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (6K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,514.00Sale price $7,514.00 Regular price$9,392.50You Save: $1,878.50Unit price per✅ In StockShop NowSave $1,878.50 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (9K + 9K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,529.00Sale price $7,529.00 Regular price$9,411.25You Save: $1,882.25Unit price per✅ In StockShop NowSave $1,882.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (9K + 9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,540.00Sale price $7,540.00 Regular price$9,425.00You Save: $1,885.00Unit price per✅ In StockShop NowSave $1,885.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (9K + 9K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,571.00Sale price $7,571.00 Regular price$9,463.75You Save: $1,892.75Unit price per✅ In StockShop NowSave $1,892.75 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (9K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,551.00Sale price $7,551.00 Regular price$9,438.75You Save: $1,887.75Unit price per✅ In StockShop NowSave $1,887.75 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (9K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,582.00Sale price $7,582.00 Regular price$9,477.50You Save: $1,895.50Unit price per✅ In StockShop NowSave $1,895.50 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (9K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,613.00Sale price $7,613.00 Regular price$9,516.25You Save: $1,903.25Unit price per✅ In StockShop NowSave $1,903.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,562.00Sale price $7,562.00 Regular price$9,452.50You Save: $1,890.50Unit price per✅ In StockShop NowSave $1,890.50 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,593.00Sale price $7,593.00 Regular price$9,491.25You Save: $1,898.25Unit price per✅ In StockShop NowSave $1,898.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (12K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $7,624.00Sale price $7,624.00 Regular price$9,530.00You Save: $1,906.00Unit price per✅ In StockShop NowSave $1,906.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (6K + 6K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,065.00Sale price $8,065.00 Regular price$10,081.25You Save: $2,016.25Unit price per✅ In StockShop NowSave $2,016.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (6K + 9K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,121.00Sale price $8,121.00 Regular price$10,151.25You Save: $2,030.25Unit price per✅ In StockShop NowSave $2,030.25
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.