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MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (6K + 12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,910.00Sale price $8,910.00 Regular price$11,137.50You Save: $2,227.50Unit price per✅ In StockShop NowSave $2,227.50 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (6K + 12K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,929.00Sale price $8,929.00 Regular price$11,161.25You Save: $2,232.25Unit price per✅ In StockShop NowSave $2,232.25 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (6K + 18K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,949.00Sale price $8,949.00 Regular price$11,186.25You Save: $2,237.25Unit price per✅ In StockShop NowSave $2,237.25 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (9K + 9K + 9K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,957.00Sale price $8,957.00 Regular price$11,196.25You Save: $2,239.25Unit price per✅ In StockShop NowSave $2,239.25 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (9K + 9K + 9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,968.00Sale price $8,968.00 Regular price$11,210.00You Save: $2,242.00Unit price per✅ In StockShop NowSave $2,242.00 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (9K + 9K + 9K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,987.00Sale price $8,987.00 Regular price$11,233.75You Save: $2,246.75Unit price per✅ In StockShop NowSave $2,246.75 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (9K + 9K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,979.00Sale price $8,979.00 Regular price$11,223.75You Save: $2,244.75Unit price per✅ In StockShop NowSave $2,244.75 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (9K + 9K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,998.00Sale price $8,998.00 Regular price$11,247.50You Save: $2,249.50Unit price per✅ In StockShop NowSave $2,249.50 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (9K + 9K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $9,017.00Sale price $9,017.00 Regular price$11,271.25You Save: $2,254.25Unit price per✅ In StockShop NowSave $2,254.25 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (9K + 12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,990.00Sale price $8,990.00 Regular price$11,237.50You Save: $2,247.50Unit price per✅ In StockShop NowSave $2,247.50 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (9K + 12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $9,009.00Sale price $9,009.00 Regular price$11,261.25You Save: $2,252.25Unit price per✅ In StockShop NowSave $2,252.25 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (9K + 12K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $9,028.00Sale price $9,028.00 Regular price$11,285.00You Save: $2,257.00Unit price per✅ In StockShop NowSave $2,257.00 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (9K + 18K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $9,048.00Sale price $9,048.00 Regular price$11,310.00You Save: $2,262.00Unit price per✅ In StockShop NowSave $2,262.00 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (12K + 12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $9,001.00Sale price $9,001.00 Regular price$11,251.25You Save: $2,250.25Unit price per✅ In StockShop NowSave $2,250.25 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (12K + 12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $9,020.00Sale price $9,020.00 Regular price$11,275.00You Save: $2,255.00Unit price per✅ In StockShop NowSave $2,255.00 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (12K + 12K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $9,040.00Sale price $9,040.00 Regular price$11,300.00You Save: $2,260.00Unit price per✅ In StockShop NowSave $2,260.00 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 22 SEER2 (12K + 18K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $9,059.00Sale price $9,059.00 Regular price$11,323.75You Save: $2,264.75Unit price per✅ In StockShop NowSave $2,264.75 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 55,000 BTU 22 SEER2 (6K + 6K + 6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $9,148.00Sale price $9,148.00 Regular price$11,435.00You Save: $2,287.00Unit price per✅ In StockShop NowSave $2,287.00 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 55,000 BTU 22 SEER2 (6K + 6K + 6K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $9,247.00Sale price $9,247.00 Regular price$11,558.75You Save: $2,311.75Unit price per✅ In StockShop NowSave $2,311.75 -
MRCOOL DIY 5th Gen Multi-Zone 4-Zone 55,000 BTU 22 SEER2 (6K + 6K + 6K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $9,258.00Sale price $9,258.00 Regular price$11,572.50You Save: $2,314.50Unit price per✅ In StockShop NowSave $2,314.50
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.