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NEW R-454B Refrigerant

MRCOOL DIY 5th Gen Multi-Zone 2-Zone 27,000 BTU 23 SEER2 (12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump

MRCOOL DIY 5th Gen Multi-Zone 2-Zone 27,000 BTU 23 SEER2 (12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump

Regular price $4,186.00 USD
Regular price $7,900.00 USD Sale price $4,186.00 USD
Save $3,714.00 Sold out
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SKUDIYM227HP1218

Type27K

Line Set for 12K Air Handler
Line Set for 18K Air Handler
  • Official MRCOOL store logo – used to represent brand-authorized sellers and verified HVAC product listings.Authorized MRCOOL Dealer
  • Customer service award graphic – MRCOOL’s 5-star HVAC support rating for Easy Pro, DIY, and multi-zone systems.5-Star Customer Service
  • Fast shipping badge for MRCOOL mini splits – official delivery services offering nationwide coverage and tracking.Fast & Secure Shipping
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PRODUCT DESCRIPTION

Heat or cool two rooms with ease using the MRCOOL DIY® Multi-Zone 27,000 BTU 23 SEER2 2-Zone Ductless Heat Pump Split System – 12K + 18K, available at MRCOOL DIY Direct. This advanced 4th Gen DIY Series system gives you professional-grade comfort with a true do-it-yourself installation—no special tools, training, or expensive labor required.

With one 12,000 BTU wall air handler (up to 550 sq. ft.) and one 18,000 BTU wall air handler (up to 800 sq. ft.), this dual-zone mini-split is perfect for homes needing flexible, efficient climate control. Powered by a 27,000 BTU condenser, this ductless heat pump provides powerful cooling in summer, reliable heating in winter, and effective dehumidification year-round.

The system uses Quick Connect® pre-charged line sets filled with eco-friendly R-454B refrigerant, eliminating the need for vacuum pumps or refrigerant handling. Simply connect the lines, power it up, and enjoy instant comfort.

Key Features:

  • True DIY® Installation – Save thousands with pre-charged Quick Connect lines

  • Dual-Zone Comfort – 12K + 18K indoor air handlers with wireless remotes

  • Energy Efficient – High 23 SEER2 rating with DC inverter technology

  • Smart Controls – Operate via remote, MRCOOL® Smart Controller app, Amazon Alexa, or Google Home

  • Built-In Safety & Alerts – Leak detection, filter reminders, error code display

  • Comfort Modes – Auto, Sleep, Dry, Follow Me® temperature sensing

  • Gold Fin® Condenser – Corrosion-resistant and built to last

  • Warranty – 7-Year Compressor, 5-Year Parts (optional Lifetime Compressor Warranty available)

Why Buy from MRCOOL DIY Direct?

At MRCOOL DIY Direct, we make HVAC simple. As an authorized MRCOOL® dealer, we ship nationwide, provide lifetime technical support, and guarantee you’re getting genuine MRCOOL products backed by warranty. Whether you’re upgrading your home or tackling a remodel, this dual-zone system is the perfect mix of DIY savings, smart features, and reliable performance.

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