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MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (6K + 9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,133.00Sale price $8,133.00 Regular price$10,166.25You Save: $2,033.25Unit price per✅ In StockShop NowSave $2,033.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (6K + 9K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,164.00Sale price $8,164.00 Regular price$10,205.00You Save: $2,041.00Unit price per✅ In StockShop NowSave $2,041.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (6K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,144.00Sale price $8,144.00 Regular price$10,180.00You Save: $2,036.00Unit price per✅ In StockShop NowSave $2,036.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (6K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,175.00Sale price $8,175.00 Regular price$10,218.75You Save: $2,043.75Unit price per✅ In StockShop NowSave $2,043.75 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (6K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,206.00Sale price $8,206.00 Regular price$10,257.50You Save: $2,051.50Unit price per✅ In StockShop NowSave $2,051.50 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (9K + 9K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,220.00Sale price $8,220.00 Regular price$10,275.00You Save: $2,055.00Unit price per✅ In StockShop NowSave $2,055.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (9K + 9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,232.00Sale price $8,232.00 Regular price$10,290.00You Save: $2,058.00Unit price per✅ In StockShop NowSave $2,058.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (9K + 9K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,263.00Sale price $8,263.00 Regular price$10,328.75You Save: $2,065.75Unit price per✅ In StockShop NowSave $2,065.75 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (9K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,243.00Sale price $8,243.00 Regular price$10,303.75You Save: $2,060.75Unit price per✅ In StockShop NowSave $2,060.75 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (9K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,274.00Sale price $8,274.00 Regular price$10,342.50You Save: $2,068.50Unit price per✅ In StockShop NowSave $2,068.50 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (9K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,305.00Sale price $8,305.00 Regular price$10,381.25You Save: $2,076.25Unit price per✅ In StockShop NowSave $2,076.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,254.00Sale price $8,254.00 Regular price$10,317.50You Save: $2,063.50Unit price per✅ In StockShop NowSave $2,063.50 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,285.00Sale price $8,285.00 Regular price$10,356.25You Save: $2,071.25Unit price per✅ In StockShop NowSave $2,071.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (12K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,316.00Sale price $8,316.00 Regular price$10,395.00You Save: $2,079.00Unit price per✅ In StockShop NowSave $2,079.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 22 SEER2 (18K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,348.00Sale price $8,348.00 Regular price$10,435.00You Save: $2,087.00Unit price per✅ In StockShop NowSave $2,087.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 23 SEER2 (6K + 6K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,652.00Sale price $8,652.00 Regular price$10,815.00You Save: $2,163.00Unit price per✅ In StockShop NowSave $2,163.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 23 SEER2 (6K + 9K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,708.00Sale price $8,708.00 Regular price$10,885.00You Save: $2,177.00Unit price per✅ In StockShop NowSave $2,177.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 23 SEER2 (6K + 9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,719.00Sale price $8,719.00 Regular price$10,898.75You Save: $2,179.75Unit price per✅ In StockShop NowSave $2,179.75 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 23 SEER2 (6K + 9K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,751.00Sale price $8,751.00 Regular price$10,938.75You Save: $2,187.75Unit price per✅ In StockShop NowSave $2,187.75 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 23 SEER2 (6K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular price $8,730.00Sale price $8,730.00 Regular price$10,912.50You Save: $2,182.50Unit price per✅ In StockShop NowSave $2,182.50
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.