Skip to product information
1 of 18
  • Free Shipping

  • 30-Day Returns*

  • Authorized Dealer

  • Professional Services

NEW R-454B Refrigerant

MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (9K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump

MRCOOL DIY 5th Gen Multi-Zone 2-Zone 18,000 BTU 24 SEER2 (9K + 9K) Ductless Mini-Split Air Conditioner and Heat Pump

Regular price $3,073.00 USD
Regular price $5,400.00 USD Sale price $3,073.00 USD
Save $2,327.00 Sold out
Shipping calculated at checkout.

SKUDIYM218HP0909

Type18K

Line Set for 9K Air Handler #1
Line Set for 9K Air Handler #2
  • 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
View full details

Have questions or need help selecting the perfect Mini Split system?

Talk with our expert HVAC team members now for assistance!!

PRODUCT DESCRIPTION

MRCOOL DIY 5th Gen Multi-Zone 18,000 BTU 24 SEER 2 Zone Ductless Mini Split System (9K + 9K)

The MRCOOL® DIY 5th Generation Multi-Zone 18,000 BTU 24 SEER 2-Zone Ductless Mini Split Heat Pump is the easiest way to heat and cool two rooms up to 350 sq. ft. each — without hiring a professional installer. This complete dual-zone ductless system includes a powerful 18,000 BTU condenser and two 9,000 BTU indoor air handlers, designed for DIY installation with pre-charged Quick Connect® line sets.

No special tools, training, or HVAC license required — just connect, tighten, and enjoy year-round comfort.

✅ Key Features & Benefits

  • Easy DIY® Installation – No specialty tools or training required.

  • Dual 9K Air Handlers – Perfect for two rooms up to ~350 sq. ft. each.

  • High Efficiency 24 SEER Rating – Save money with ultra-efficient heating and cooling.

  • Heat Pump Technology – Provides both heating and cooling year-round.

  • Pre-Charged Quick Connect® Line Sets – Sealed and ready with eco-friendly R-454B refrigerant.

  • Smart Controls – Control each zone via smartphone app, remote, Amazon Alexa, or Google Home.

  • Gold Fin® Condenser – Corrosion-resistant for long-lasting durability.

  • Follow Me® Feature – Delivers comfort exactly where you need it.

  • Low Ambient Cooling – Keeps running even when outdoor temps drop.

  • Peace of Mind Warranty – 7-Year Compressor, 5-Year Parts, optional Lifetime Compressor Warranty.

📱 Smart Comfort, Anywhere

  • Adjust temperature, mode, and fan speed via the MRCOOL SmartHVAC app.

  • Works with Amazon Alexa and Google Home for hands-free voice control.

  • LED digital displays show real-time temperature, alerts, and troubleshooting codes.

🌡️ Multi-Mode Operation

  • Auto Mode – Automatically balances heating and cooling.

  • Dry Mode – Dehumidifies while maintaining set temperature.

  • Sleep Mode – Saves energy and keeps you comfortable overnight.

  • Emergency Operation – Manual override option for forced cooling.

⚡ Why Choose MRCOOL DIY?

The MRCOOL DIY Series is the original and #1 best-selling DIY mini split system in America. With Quick Connect® line sets, you’ll save thousands of dollars on installation, enjoy year-round comfort, and gain confidence knowing your system is backed by lifetime technical support.


👉 Perfect for: Bedrooms, home offices, garages, small apartments, or any two-zone application up to 700 sq. ft. combined.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)