SKU: 37599603080

MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 21.8 SEER2 (9K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump

Sale price$2875.50 Regular price$3195.00
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Description

MRCOOL DIY 5th Gen Multi-Zone 3-Zone 48,000 BTU 21.8 SEER2 (9K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat PumpMRCOOL DIY Multi Zone 5th Generation 48K BTU Three Zone Ductless Mini Split A Heating and AC System You Can Install By Yourself! Heat or cool three rooms with the MRCOOL DIY Multi Zone 48,000 BTU 21. 8 SEER2 3 Zone Ductless Heat Pump Split System 9K + 18K + 18K. This DIY Series multi zone product features easy installation that requires no special tools or training. You'll save thousands of dollars on installation and you can get the amazing air

MRCOOL DIY Multi-Zone 5th Generation 48K BTU Three Zone Ductless Mini Split - A Heating and AC System You Can Install By Yourself!

Heat or cool three rooms with the MRCOOL DIY Multi-Zone 48,000 BTU 21.8 SEER2 3 Zone Ductless Heat Pump Split System - 9K + 18K + 18K. This DIY Series multi-zone product features easy installation that requires no special tools or training. You'll save thousands of dollars on installation and you can get the amazing air comfort of your dreams due to the condenser’s 48,000 BTU capacity. This units consists of two 12,000 btu air handlers (550 square feet) and one 18,000 btu (800 square feet). A heat pump by design, this ductless HVAC solution can run in reverse and pull in heat from the outdoors when in a heating mode. It comes with a 7 year compressor warranty, (Plus a limited lifetime compressor warranty), 5 year parts manufacturer warranty! 

MRCOOL DIY 5th Gen Multizone 48,000 BTU systems can support up to FIVE indoor units.

The MRCOOL DIY Multi-Zone 48,000 BTU 21.8 SEER2 3 Zone Ductless Heat Pump Split System - 9K + 18K + 18K units are super easy to install and require no special training or expensive specialty tools. The DIY system includes Quick Connect lines that are pre-charged with eco-friendly R-454B refrigerant. Due to the Quick Connect line set, you don’t have to hire an HVAC technician to complete the install. We also have simple video instructions on how to install a DIY Multi-Zone unit yourself!

The MRCOOL DIY Multi-Zone 48,000 BTU 21.8 SEER2 3 Zone Ductless Heat Pump Split System - 9K + 18K + 18K can cool through the Summer, heat through the Winter, and dehumidify through the wet seasons. Plus, you can quickly check the temperature of each room in your home from the easy to read digital display or from the MRCOOL Smart Controller mobile app. The display on the front of each indoor air handler unit can also display troubleshooting codes and alerts, so you are always aware of any issues with your system. Operate each unit wirelessly with either the included remote or with the MRCOOL Smart Controller app for Apple or Android devices. You also have the ability to control your mini-split unit with Amazon Alexa or Google Home.

The three MRCOOL DIY Multi-Zone air handlers included in this set provide directional control of the heated or cooled air. This distributes the air evenly so everyone in the room can stay comfortable. If you are in a situation that requires forced cooling, you can set your MRCOOL DIY System to manual with the button located on the right side of the unit under the front panel. In this emergency operation mode, you can test the cooling operation of your unit after installation or to complete a maintenance task.

In auto mode, each unit provides air for your home at your desired comfort level. Set your desired temperature, and the HVAC unit will determine how much heat or air conditioning is needed. You can also set this system to a drying function, which will continue to control the space’s air temperature while dehumidifying.

Use the sleep mode at night to save money on your utilities bills and use less energy. Sleep mode operates in an 8 hour window once turned on.

The MRCOOL DIY Multi-Zone 48,000 BTU 21 SEER three-Zone Ductless Heat Pump Split Air Conditioner System - 9K + 18K + 18K comes with many options, so you can customize your system based on your needs. Limit your energy usage and save money on your utility bill by using the system’s timer function. If your system begins to run low on refrigerant, an alert will appear on the easy-to-read display on the front of each air handler, letting you know there may be a leak. If you desire to keep a room quiet and minimize lighted alerts, you can mute each indoor unit. By muting the system, the buzzer for alerts will not sound and the LED lit display will turn off. Should the unfortunate event of a power outage occur, the MrCool system will automatically shut off and then back on with the same settings once power returns.

Easily maintain your MRCOOL DIY Multi-Zone 48,000 BTU 21 SEER Three-Zone Ductless Heat Pump Split Air Conditioner Unit with alerts and reminders. Any troubleshooting codes will appear on the front display and the user manual contains an index for common codes. Air filter cleaning alerts are automatic, and you can easily keep the minimal indoor units clean with a dry or damp cloth.

Features:

  • Easy DIY® Installation
  • "Pre-charged DIY®
  • Quick Connect Line Set"
  • Simple to Use
  • Multi-room Comfort
  • Energy Efficient DC Inverter
  • 100% Sealed System
  • Gold Fin® Condenser
  • Eco Safe R-454B Refrigerant
  • Smartphone App Controls
  • Lifetime Technical Support
  • Follow Me® Feature
  • Low Ambient Cooling
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: 37599603080

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4.8 ★★★★★
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Verified Purchase
Don L. III
Chelsea, US
★★★★★ 5
Great to exercise the dogs!
Style: Sport, Size: Large
Great to throw 3” KONG Ball (RED) with hole thru it! The thrower is the best to exercise dogs with retrieving balls!
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Reviewed in the United States on May 6, 2026
T
Verified Purchase
This bish
Whiting, US
★★★★★ 5
My GSD's Emotional Support Balls
My GSD has three of these and they are undoubtedly his emotional support balls. I bought these so that the medium ones wouldn't get stuck under our couch and make him spiral. He takes one everywhere, it keeps him company in his bowl when he's eating, it gets dropped in my shower, it goes potty with him, on walks, it falls out of his mouth when he falls asleep. These are the equivalent of a GSD pacifier. Best Purchase I've made hands down. Plus they don't get stinky after being constantly covered in dog drool and if they get dirty/ muddy/ hairy a decent rinse will do the trick . They last a LONG time with my super chewer, they are firm enough so that when he gets a good chew on it it doesn't fall apart. He has endless hours of obsession logged into these balls.
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Reviewed in the United States on June 18, 2025
A
Verified Purchase
Amazon Customer
Omaha, US
★★★★★ 5
Great Durability
Even my heavy chewer GSDs haven’t destroyed them…yet. Easier on your shoulder if you buy the ball thrower.
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Reviewed in the United States on April 18, 2026
R
Verified Purchase
Robert Peterson
Bozeman, US
★★★★★ 5
Dog loves this ball.
Great ball. The dog loves chasing it and it bounces in different directions so she can’t anticipate where it goes. So far she hasn’t been able to chew through the ball. She Is a medium sized dog.
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Reviewed in the United States on March 16, 2026
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Verified Purchase
Ashley H.
Carnegie, US
★★★★★ 5
Durable, bouncy, absolutely loved!
My dog, bless her heart, goes absolutely bonkers for these balls. I swear she knew what was in the package before I even opened it she was right there trying to open it for me. These are GREAT! We take them to the park with the Chuck-it Stick, to the river for some water fetch, and anywhere as her “reward” for being calm and obedient. Beware though, they sure can BOUNCE. She dropped one of these out the car window (we were going 20mph in a residential area) and even after searching for almost 10 minutes I could not find it. They can withstand her super-chewer mouth with no visible damage. I highly recommend! (Photo is of the tennis ball version of this product, she doesn’t sit still long enough for a photo of the rubber version).
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Reviewed in the United States on September 13, 2023

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