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NEW R-454B Refrigerant

MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump

MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (6K + 6K) Ductless Mini-Split Air Conditioner and Heat Pump

Regular price $2,923.00 USD
Regular price $4,344.00 USD Sale price $2,923.00 USD
Save $1,421.00 Sold out
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SKUDIYM218HP0606

Type18K

Line Set for 6K Air Handler #1
Line Set for 6K Air Handler #2
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PRODUCT DESCRIPTION

MRCOOL DIY 5th Gen 18,000 BTU 23.9 SEER2 Dual-Zone Ductless Mini Split Heat Pump System – 6K + 6K

Experience year-round comfort and big installation savings with the MRCOOL DIY 5th Generation Multi-Zone 18,000 BTU 23.9 SEER2 Ductless Heat Pump System. This dual-zone package includes two 6,000 BTU wall air handlers, each ideal for rooms up to ~200 sq. ft., powered by the reliable 18,000 BTU outdoor condenser. Perfect for bedrooms, offices, or smaller living areas, this system delivers quiet, efficient heating and cooling in two separate zones.

Why Choose MRCOOL DIY?

  • True DIY Installation – No special tools, training, or HVAC license required. The included pre-charged Quick Connect® line sets come filled with eco-friendly R-454B refrigerant, making installation fast and hassle-free.

  • Save Thousands on Installation – Skip the high labor costs of traditional systems by doing it yourself with easy step-by-step video instructions.

  • Year-Round Comfort – This heat pump design provides cooling in summer, heating in winter, and dehumidification during wet seasons.

Advanced Features

  • 23.9 SEER2 Efficiency – Energy-saving inverter technology keeps comfort high and utility bills low.

  • Smart Controls – Operate your system with the MRCOOL Smart Controller app, Amazon Alexa, or Google Home. Each air handler also comes with a wireless remote.

  • Gold Fin® Condenser – Built for long-lasting durability, corrosion resistance, and reliable performance.

  • Follow Me® Function – Sensors in the remote adjust the temperature based on where you are in the room.

  • Low Ambient Cooling – Keeps working even in cold outdoor conditions.

  • Alerts & Self-Diagnostics – Easy-to-read digital display shows error codes, filter reminders, and refrigerant alerts for simple maintenance.

  • Quiet Comfort – Sleep mode saves energy overnight, while mute mode eliminates lights and alerts for undisturbed rest.

  • Auto Restart – System remembers your last settings and resumes automatically after a power outage.

Warranty & Support

Your investment is protected with a 7-Year Compressor Warranty (with optional Lifetime Compressor Warranty upgrade), 5-Year Parts Warranty, and lifetime technical support from MRCOOL.


Key Specs

  • System Capacity: 18,000 BTU

  • Air Handlers Included: 2 × 6,000 BTU

  • Efficiency: 23.9 SEER2

  • Refrigerant: R-454B, pre-charged Quick Connect® line sets

  • Coverage: ~200 sq. ft. per air handler (400 sq. ft. total)

  • Power: 208/230V


Perfect For:

✔ Two small bedrooms
✔ Home office + guest room
✔ Studio or small apartment zones

The MRCOOL DIY 5th Gen Multi-Zone 18k Dual Zone Mini Split (6K + 6K) is the easiest, most cost-effective way to enjoy professional-grade HVAC comfort without professional installation costs.

👉 Order today from MRCOOL DIY Direct and enjoy free shipping, nationwide delivery, and expert support!

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