SKU: 99692017938

MRCOOL DIY 4th Gen 3-Zone 36,000 BTU 22 SEER (9K + 12K + 18K) Ductless Mini Split AC and Heat Pump with Ceiling Cassettes - 230V

Sale price$2823.75 Regular price$3137.50
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Description

MRCOOL DIY 4th Gen 3-Zone 36,000 BTU 22 SEER (9K + 12K + 18K) Ductless Mini Split AC and Heat Pump with Ceiling Cassettes - 230VThe MRCOOL DIY Multi Zone 4th Gen 36K BTU Three Zone Ductless Mini Split with Ceiling Cassettes (9K + 12K + 18K) is an advanced, energy efficient heating and cooling solution that offers easy DIY installation. Perfect for three rooms, the system includes three ceiling cassettes (9,000 BTU, 12,000 BTU, and 18,000 BTU) designed to discreetly blend into your space while providing powerful comfort. The ceiling cassette units are low profile and can be

 

The MRCOOL DIY Multi-Zone 4th Gen 36K BTU Three-Zone Ductless Mini Split with Ceiling Cassettes (9K + 12K + 18K) is an advanced, energy-efficient heating and cooling solution that offers easy DIY installation. Perfect for three rooms, the system includes three ceiling cassettes (9,000 BTU, 12,000 BTU, and 18,000 BTU) designed to discreetly blend into your space while providing powerful comfort.

The ceiling cassette units are low-profile and can be easily installed between all types of joists on a 16-inch center, including pre-manufactured I-joists. This flexibility makes it ideal for both new construction and retrofit projects. These units offer multiple operating modes and the Elevation function, which lowers the filter panel for easy air filter maintenance.

The system comes with Quick Connect® pre-charged line sets (R-410A refrigerant) and No-Vac® Coupler for a seamless connection. You'll need to select line set lengths for each zone, which will include the appropriate control wire length. The three air handlers—capable of covering 375 sq ft, 500 sq ft, and 750 sq ft respectively—allow for zoned heating and cooling without ductwork.

Control the system effortlessly via the MRCOOL Smart Controller mobile app, or with Amazon Alexa or Google Home. The 22 SEER rating ensures top-tier energy efficiency, and the system can operate in extreme temperatures ranging from -22°F to 122°F, offering year-round comfort.

Buy from the USA's most trusted authorized MRCOOL dealer, MRCOOL DIY Direct, to ensure you get the best pricing and support for your DIY installation.

Key Features:

  • DIY Installation with no special tools or training required.
  • Quick Connect Line Set pre-charged with eco-friendly refrigerant for fast installation.
  • Multi-Zone Comfort: Easily control the temperature in three rooms (9K, 12K, and 18K air handlers).
  • Smart Controls via smartphone app or voice control with Alexa/Google.
  • Energy Efficient: 22 SEER rating with DC Inverter Technology.
  • Low Maintenance: Elevation function for easy filter cleaning.
  • Gold Fin® Condenser for durability and corrosion resistance.
  • Comprehensive Warranty: 7-year compressor warranty, 5-year parts warranty, and optional lifetime compressor warranty.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 99692017938

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4.9 ★★★★★
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Verified Purchase
Tiffany
Alexandria, US
★★★★★ 5
Cute shelf set!
Color: Brown, Color: Brown
Shelves look great in my room. Perfect amount of space to display my little travel trinkets. Super easy to install and seem to hold a good amount of weight as I have a Mason Jar full of sand/shells on one of them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
J
Verified Purchase
jrager
Waukegan, US
★★★★★ 5
Sturdy and well built
Color: Natural Wood
Very sturdy and well built.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
S
Verified Purchase
Smoke
Pawtucket, US
★★★★★ 5
Great value and easy to install!
Color: Black, Color: Black
I only needed 3 of the 4 shelves so I have one as a backup! Very easy to install as well. The shelves feel sturdy and I’ve never had any issues!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
K
Verified Purchase
Kinny
Phoenix, US
★★★★★ 4
quality matches cost + instructions unnecessarily tedious
Color: Brown, Color: Brown
The material is real wood but don't assume that means quality - it's still very cheap feeling, and very lightweight. But once installed they are quite stable, and they look great from afar. I got a darker colored one and the stain does come off very easily. One of the shelves had a huge manufacturer sticker on it and it took off the stain when I removed it, and a bit of the stain also came off when I wiped the shelves down with a wet cloth. It'll be dry dusting from now on, I suppose. Also, they did not fit snugly into the corner - when one side is pushed flush to the wall, it forces the other side to pull away from the wall a little bit. It wasn't a drastic space, maybe like 1/8th of an inch, but it is still something to note. I am fine with the cheap quality as they are, after all, pretty cheap, so I'd say they are worth exactly as much as they cost. Personally I am happy with the purchase - just thought I'd warn. Secondly - if you want to follow the instructions exactly, you will need two people unless you have inhuman agility. But I also think the instructions were a bit asinine and tedious. They want you to line up the LOOSE shelf and brackets with a leveler to mark where the brackets go on the wall, then put in the wall screws, hang the brackets on them, balance the shelf on the brackets to mark on the SHELF where the brackets will be attached, take the brackets off the wall to screw them into the shelf, then put the combined shelf-bracket unit once again on the wall screws and finally screw those in tight. In hindsight, you can just mark where the brackets should go on the SHELF (not wall), screw the brackets into the shelves, THEN level the shelf on the wall and screw the whole unit into the wall together. We were really baffled why the instructions didn't have us do that instead of spending extra time (and frustration) trying to juggle all the loose pieces and tools. But I'm not engineer-minded, nor have I ever installed corner shelves before, so maybe there would be some kind of issue with doing it that way that I can't predict.
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Reviewed in the United States on June 10, 2024
A
Verified Purchase
Antonia
Charlottesville, US
★★★★★ 5
Good shelving decor
Color: Black
Easy to install and perfect for a corner display of Disney decor. They are lightweight, so we didn't put anything heavy on them, but the brackets seem sturdy enough that we could probably put something moderately weighty on them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 25, 2025

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