-
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 21.8 SEER2 (12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $6,317.00Sale price $6,317.00 Regular price$7,896.25You Save: $1,579.25Unit price per✅ In StockShop NowSave $1,579.25 -
MRCOOL DIY 5th Gen 3-Zone 27,000 BTU 22 SEER (9K + 12K + 12K) Ductless Mini Split AC and Heat Pump with Ceiling Cassettes
Regular price $8,884.00Sale price $8,884.00 Regular price$11,105.00You Save: $2,221.00Unit price per✅ In StockShop NowSave $2,221.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 36,000 BTU 23 SEER2 (9K + 9K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $4,905.00Sale price $4,905.00 Regular price$6,131.25You Save: $1,226.25Unit price per✅ In StockShop NowSave $1,226.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 27,000 BTU 23 SEER2 (12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $4,933.00Sale price $4,933.00 Regular price$6,166.25You Save: $1,233.25Unit price per✅ In StockShop NowSave $1,233.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (18K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $7,392.00Sale price $7,392.00 Regular price$9,240.00You Save: $1,848.00Unit price per✅ In StockShop NowSave $1,848.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (12K + 18K + 36K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $7,520.00Sale price $7,520.00 Regular price$9,400.00You Save: $1,880.00Unit price per✅ In StockShop NowSave $1,880.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (12K + 18K + 24K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $7,201.00Sale price $7,201.00 Regular price$9,001.25You Save: $1,800.25Unit price per✅ In StockShop NowSave $1,800.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (12K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $7,135.00Sale price $7,135.00 Regular price$8,918.75You Save: $1,783.75Unit price per✅ In StockShop NowSave $1,783.75 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (12K + 12K + 36K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $7,263.00Sale price $7,263.00 Regular price$9,078.75You Save: $1,815.75Unit price per✅ In StockShop NowSave $1,815.75 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (12K + 12K + 24K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $6,944.00Sale price $6,944.00 Regular price$8,680.00You Save: $1,736.00Unit price per✅ In StockShop NowSave $1,736.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $6,877.00Sale price $6,877.00 Regular price$8,596.25You Save: $1,719.25Unit price per✅ In StockShop NowSave $1,719.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $6,620.00Sale price $6,620.00 Regular price$8,275.00You Save: $1,655.00Unit price per✅ In StockShop NowSave $1,655.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (9K + 18K + 36K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $7,362.00Sale price $7,362.00 Regular price$9,202.50You Save: $1,840.50Unit price per✅ In StockShop NowSave $1,840.50 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (9K + 18K + 24K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $7,043.00Sale price $7,043.00 Regular price$8,803.75You Save: $1,760.75Unit price per✅ In StockShop NowSave $1,760.75 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (9K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $6,976.00Sale price $6,976.00 Regular price$8,720.00You Save: $1,744.00Unit price per✅ In StockShop NowSave $1,744.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (9K + 12K + 36K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $7,104.00Sale price $7,104.00 Regular price$8,880.00You Save: $1,776.00Unit price per✅ In StockShop NowSave $1,776.00 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (9K + 12K + 24K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $6,785.00Sale price $6,785.00 Regular price$8,481.25You Save: $1,696.25Unit price per✅ In StockShop NowSave $1,696.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (9K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $6,461.00Sale price $6,461.00 Regular price$8,076.25You Save: $1,615.25Unit price per✅ In StockShop NowSave $1,615.25 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (9K + 9K + 36K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $6,946.00Sale price $6,946.00 Regular price$8,682.50You Save: $1,736.50Unit price per✅ In StockShop NowSave $1,736.50 -
MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 22 SEER2 (9K + 9K + 24K) Ductless Mini-Split Air Conditioner and Heat Pump
Regular price $6,627.00Sale price $6,627.00 Regular price$8,283.75You Save: $1,656.75Unit price per✅ In StockShop NowSave $1,656.75
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.