Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (6K + 9K + 9K + 9K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling CassettesThe MRCOOL DIY 5th Gen 55,000 BTU 6 Zone Ceiling Cassette Mini Split System is the largest capacity DIY unit available, capable of heating and cooling up to six individual zones with precision and efficiency. Designed for powerful whole home performance, it combines a high output condenser with your choice of low profile ceiling cassette air handlers all with smart control and DIY installation in mind. This system supports any combination of 6K, 9K,
The MRCOOL DIY 5th Gen 55,000 BTU 6-Zone Ceiling Cassette Mini-Split System is the largest capacity DIY unit available, capable of heating and cooling up to six individual zones with precision and efficiency. Designed for powerful whole-home performance, it combines a high-output condenser with your choice of low-profile ceiling cassette air handlers — all with smart control and DIY installation in mind.
This system supports any combination of 6K, 9K, 12K, and 18K ceiling cassettes, allowing full customization for bedrooms, living rooms, garages, offices, or large open spaces. With a 21.5 SEER2 rating, it maximizes efficiency while delivering serious comfort even in extreme weather conditions.
Whether you’re retrofitting an older home or building out a modern multi-room system, this DIY 6-zone setup offers unmatched versatility — without the need for a pro HVAC installer.
Key Features:
-
Supports six indoor zones with a single 55K condenser
-
Compatible with 6K, 9K, 12K, and 18K ceiling cassette units
-
21.5 SEER2 energy efficiency for lower utility bills
-
Ideal for large homes, offices, shops, or multi-room spaces
-
Flush-mounted ceiling cassettes blend seamlessly into any décor
-
DIY installation with included quick-connect fittings
-
Operates in extreme temperatures: heats to -13°F, cools to 122°F
-
App, Alexa, and Google Assistant smart control integration
-
Corrosion-resistant Gold Fin® condenser coating
-
Backed by 5-year parts and 7-year compressor warranty
| BRAND NAME | MRCOOL |
| SERIES | DIY 5th gen Multi-Zone Mini-splits |
| MODEL | DIY-MULTI6-55HP230D-O |
| GTIN | 840255587488 |
| UPC | 840255587488 |
| SHORT DESCRIPTION | MRCOOL® 55k DIY 5th Generation 6 Zone Multi-Zone Mini-Split Condenser 230v |
| LONG DESCRIPTION | Our new 5th Generation MRCOOL® DIY® 55k BTU Multi-Zone Ductless Mini-Split Condenser is one of the most efficient and innovative units in the industry, and we’re excited to finally share it with you! On top of saving time and money because you won’t need an HVAC professional, this system will give you a good sense of accomplishment because you’ll have installed it yourself! The whole family will be able to enjoy the comfort of this condenser, because it can heat and cool up to 6 different spaces that equal up to 2290 sq. ft., giving you the ability to heat and cool an entire home to your exact specifications using a single MRCOOL® system. The system’s patented pre-charged Quick-Connect® line sets essentially fast-forward the installation of this system, enabling you to skip the evacuation and charging steps and simplifying the entire process. We utilize new R-454B refrigerant in these line sets, which is a much more environmentally friendly and efficient choice. Features like these assist this unit in achieving its impressive SEER2 of 22, and its HSPF2-4 of 10.6, both of which signify that this system will help you save money throughout the entire time you use it. These line sets are sold separately. Once you install this condenser, you’ll be met with a variety of features to help you control your comfort. One of these features is the Smart HVAC app, available on Apple and Android, that allows you to operate your system from the convenience of your phone. Set schedules, manage different modes, monitor energy consumption, and more all without having to leave the couch! You can also set up voice control through Amazon Alexa or Google Home, meaning you can control your comfort without moving a finger. This system ensures you’ll be enjoying ultimate convenience and superior comfort. The warranty for this unit is one of the best in the industry, and we’re proud to have your back. You can enjoy the peace of mind of a 5 year parts warranty, a 7 year compressor warranty, and, once you enroll in the MRCOOL® Care Program, a Limited Lifetime Replacement warranty. If you need perfect comfort but don’t want to break the bank, this MRCOOL® DIY® condenser is your answer! |
| FEATURE LIST | Intertek listed 5031495 Easy DIY installation Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit. Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort. The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box. |
| SEER2 | 22 |
| EER2 | 12 |
| HSPF2-4 | 10.6 |
| HSPF2-5 | 8.5 |
| TONNAGE | 4.6 |
| COOLING CAPACITY (BTU) | 47000 |
| HEATING CAPACITY (BTU) | 55000 |
| VOLTAGE (V) | 208/230 |
| PHASE | 1 |
| CYCLE | 60 |
| MAX FUSE BREAKER (A) | 45 |
| MIN CIRCUIT AMPACITY (A) | 43 |
| COLOR | White |
| ZONE CAPACITY | 6 |
| REFRIGERANT TYPE | R-454B |
| REFRIGERANT VOLUME (OZ) | 151.68 |
| DECIBEL RATING (DBA) | 64 |
| INVERTER | DC |
| LINE SET LENGTH | 25 |
| MAX LINESET LENGTH (FT) | 221.4 |
| LIQUID LINE SIZE | 1/4 |
| SUCTION LINE SIZE | (3/8 X4) (1/2 X2) |
| COMPRESSOR MOTOR TYPE | Rotary |
| AUXILIARY HEATER INCLUDED | No |
| AUXILIARY HEATER AVAILABLE | No |
| FAN ONLY OPTION | Yes |
| QUIET MODE | Yes |
| AUTO COOL | Yes |
| WIFI COMPATIBILITY | Yes |
| APP COMPATIBILITY | Yes |
| WORKS WITH IOS | Yes |
| WORKS WITH ANDROID | Yes |
| UL LISTED | Yes |
| ETL LISTED | Yes |
| ENERGY STAR CERTIFIED | Yes |
| AHRI CERTIFIED | Yes |
| REGISTERED WARRANTY | Extended Limited Lifetime* |
| BASE PARTS WARRANTY | 5 |
| BASE COMPRESSOR WARRANTY | 7 |
| HAS BATTERIES | Yes |
| CONTAINS ELECTRONICS | Yes |
| CONTAINS CHEMICALS | Yes |
| CONTAINS AEROSOL | Yes |
| CONTAINS COMPRESSED GAS | Yes |
| PROPOSITION 65 WARNING | Yes |
| NET DEPTH (IN) | 16.34 |
| NET HEIGHT (IN) | 52.48 |
| NET WIDTH (IN) | 37.48 |
| NET WEIGHT (LBS) | 245.81 |
| GROSS DEPTH (IN) | 19.49 |
| GROSS HEIGHT (IN) | 58.27 |
| GROSS WIDTH (IN) | 43.11 |
| GROSS WEIGHT (LBS) | 267.46 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.1 ★★★★★
Based on 1800 reviews
Sort
Product Reviews
★★★★★ 5
I love it!!
Style: Dual Arms, Size: 17"-33"
I love this product. I do a lot of gaming and you tube watching. At the same time a lot. With this I keep my desktop clear so I can have my notebooks there and can still have both my monitors up and running. Another plus is if I decide to sit on the couch and play the console I can turn the screen a full 180 degrees so I can setup you tube and play games on the T.V. using the console.
The product itself feels to be of decent quality. It is not all plastic. The clamp is nice and strong.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 3
Gets the job done. Just barely.
Style: Dual Arms, Size: 17"-33"
It holds up my monitor, but just barely, and without any confidence or finesse.
I had to move on from my previous arm mounts, the HUANUO. Those claimed to hold up to a 30 inch monitor and support 20 pounds. When I upgraded to a Samsung Odyssey Neo G8, it could no longer perform its duties. The gas shock was up to task, but the final adjustment piece that tilts it up or down was a hard down.
Queue this piece of hardware! 22 pounds is more than 20, and 32 is more than 30. This time I'm not even technically out of spec. The clamping force seems more than adequate to hold this to my desk. I will, at this point, basically walk you through how I feel about this mount, based on the order of installation instructions.
The way it goes together means that you will have to pull your desk out to maneuver the clamp in place before snugging it back up to the wall, a point in the HUANO's favor since it had a clever leveraging mechanism that lets you hang it with your desk still against the wall.
The way cords route through the arms close to the base means that you have to route them before you put the swivel arm on the base. This is because it has a screw at the front and back to secure the cover, and the angle/height are such that you cannot fit a screwdriver into the bottom one after you mount it. While not impossible to do with it installed, it would involve a right-angle screwdriver. They provide one of those, but the screwdriver bit of it is on the long shaft, and you would need it on the short shaft to get to that screw.
The way the swivel arms mount on the base is less than ideal as well. The arm slips onto a robust metal hub, and you tighten a screw that pushes against a plastic tab that makes it harder or easier to move. The location for this screw faces the wall. So you must turn the arm at an extreme angle to make it tighter or looser. Not a big deal, but noticeable.
Top arms go on smoothly, cable routing is simple and easy. No complaints about this section.
Mounting the monitor. The instructions are to mount the plate to the monitor, and then slide the plate onto the holder and secure it with the screw. I did this for neither of my monitors, although I tried it for my second. My big monitor went smoothly by mounting the bracket ahead of time and just forcing the arm down into position while my monitor rested on my desk. I tried this for my second bracket, but it was much harder to do with the monitor in a vertical orientation. So then I tried to do it the way the instructions wanted. I would have been able to do so, but my monitor has the mounting location set into the back of the monitor. This means that you can't mount it flush and then slide it on because you don't have clearance. So I tried to use the spacers. The spacers aren't spacious enough and the screws bottomed before snugging. While I'm not saying that solution wouldn't have technically worked, I instead reverted back to mounting the bracket first. This time I laid my monitor flat on the desk, reduced the tension in the shock greatly, and placed it into position that way.
At the end when it's complete and setup? It works. It will hold the G8. But just barely. The G8 uses an adapter to go from the monitor mounting points to VESA 100. This adapter sticks out quite a bit from the monitor, which means the weight is further away from the mounting point. Getting the tilt adjustment to hold involved a bigger allen wrench and cranking it further than it seems like it was meant to go. It groaned, but it held. It wants to dip if you mess with it, so I crank it again. Will it one day totally fail on me and point my monitor at my desk? Maybe. But it works on day 1, so that's a start.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 29, 2024
★★★★★ 5
Holds Backpack Straps Together
Size: 6inches-60PCS
Good quantity for its price. It’s a good quality and durable. I use it to hold my Loungefly backpack straps that I hang on my wall and it does its job perfectly. It’s reusable too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
★★★★★ 5
Perfect for small normal cables lying around.
Size: 6inches-200PCS
Cable ties to organize my random cable is what I needed in my life. The quality is solid and it's easy to use and adjust. They hold well without slipping and the size is perfect for use with normal cables. its about 6 inches long so its gives you a little less than 3inch radius considering they way it is suppose to loop. I think realistically, its more like 2 inch radius. It is versatile and can be reused considering its velcro.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 5
Perfect Velcro Cable Ties for Everyday Use!
Size: 6inches-60PCS
Great value for good quality Velcro cable ties! These are perfect for your electronic organizer bag or just to organize random loose cables around the house. Hard to tell how long they'll last, but for the price, they are easily replaceable. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026