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Description
MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (9K + 12K + 12K + 12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling CassettesMRCOOL DIY 5th Gen Multi Zone 6 Zone 55,000 BTU 22 SEER2 (9K + 12K + 12K + 12K + 12K + 12K) Ductless Mini Split Air Conditioner & Heat Pump with Ceiling Cassettes Build your dream comfort system with the MRCOOL DIY 5th Gen 6 Zone 55,000 BTU 22 SEER2 Ductless Mini Split System a complete package featuring six ceiling cassette air handlers (9K + 12K + 12K + 12K + 12K + 12K) paired with the powerful DIY MULTI6 55HP230D O condenser. Perfect for large
MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (9K + 12K + 12K + 12K + 12K + 12K) Ductless Mini-Split Air Conditioner & Heat Pump with Ceiling Cassettes
Build your dream comfort system with the MRCOOL DIY 5th Gen 6-Zone 55,000 BTU 22 SEER2 Ductless Mini-Split System — a complete package featuring six ceiling cassette air handlers (9K + 12K + 12K + 12K + 12K + 12K) paired with the powerful DIY-MULTI6-55HP230D-O condenser. Perfect for large homes, shops, or offices, this Energy Star–certified system delivers professional-grade performance with true DIY installation.
Each ceiling cassette installs flush within the ceiling for a clean, low-profile finish, while the system’s Quick-Connect® pre-charged line sets simplify installation — no vacuum pump or refrigerant handling required. Enjoy whisper-quiet comfort, smart-home control, and year-round efficiency even in extreme climates.
Key Features & Benefits
- ✔ Complete 6-Zone kit (9K + 12K + 12K + 12K + 12K + 12K) with 55K BTU outdoor unit.
- ✔ 22 SEER2 / 10.6 HSPF2-4 efficiency for lower energy bills.
- ✔ Heats to −13 °F and cools to 122 °F for all-season performance.
- ✔ Quick-Connect® R-454B line sets — no vacuum or charging required.
- ✔ Ceiling cassette air handlers mount flush for a clean, modern look.
- ✔ Smart control via app, Alexa & Google Assistant.
- ✔ DIYPro® cable eliminates the need for electrical conduit.
- ✔ Gold Fin® anti-corrosion coating extends unit lifespan.
- ✔ Follow Me® remote sensor tracks room temperature for personalized comfort.
- ✔ AHRI & ETL listed, Energy Star certified for verified performance.
💡 Pro Tip: Every MRCOOL DIY ceiling cassette includes the WMK-19 Smart HVAC Wi-Fi Controller — a plug-and-play adapter that connects directly to the air handler for instant Wi-Fi access. Just plug it in and connect through the MRCOOL or SmartHVAC app to enable scheduling, usage tracking, and voice control with Alexa or Google Assistant.
Technical Specifications
- Brand / Series: MRCOOL DIY 5th Gen Multi-Zone Mini-Split
- Outdoor Model: DIY-MULTI6-55HP230D-O
- Indoor Models: Ceiling Cassettes (9K + 12K × 5)
- Total BTU Capacity: 55,000 BTU Heating / 47,000 BTU Cooling
- Zones: 6
- Refrigerant: R-454B (Pre-Charged Quick-Connect)
- Voltage: 208/230 V 1 Ph 60 Hz
- Efficiency: 22 SEER2 | EER2 12 | HSPF2-4 10.6 | HSPF2-5 8.5
- Operating Range: Heat to −13 °F | Cool to 122 °F
- Sound Level: 64 dBA (Outdoor Unit)
- Compressor: DC Inverter Rotary
- Line Set Length: 25 ft each standard | Max total 221.4 ft
- Certifications: Energy Star, AHRI, ETL Listed 5031495, UL
- Warranty: 5-Year Parts | 7-Year Compressor | Limited Lifetime with MRCOOL Care registration
Buy from MRCOOL DIY Direct — America’s trusted source for genuine MRCOOL systems. Get fast nationwide delivery and expert DIY support for every install.
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
4.7 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 4
Not for gnawers
Size: 11.5 in, Color: Bear
I was hoping this would work for my teenage ACD and save my leather goods from being chewed on.
He gnawed on it quietly I was thrilled. But I had to take it from him within a few minutes. Gnawing apparently equals chewing pieces off.
Not made for chewers or gnawers.
It seemed to be well made, was soft, was actually a fairly good size and didn’t get gross when it got spitty. Just didn’t work out for Captain chaos destructor of all.
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Durable & Leather. For Small-Medium Dogs
Size: 15 in, Color: Retriever, Size: 15 in, Color: Retriever
This is a great dog toy! My Pomeranian is a small guy at only 8lbs. but he sure knows how to chew and he does it as often as he can. I was throwing out toy after toy because he was tearing them to pieces after only a half hour or so. After putting my money in the garbage so many times, I decided to search for toys that would hold up to his destructive mouth. I found a lot that claimed they wouldn't fall apart but they were all more than I wanted to spend. I came across this toy and a rabbit shaped one just like this. I bought both months ago and both are still in tact after all this time. Sure the edges are a little frayed but other than that, no damage whatsoever! I'm not sure what dura fused means but that seemed promising to me when I was reading the description, also the fact that they're leather made them seem more durable to me. Both have squeakers inside and some sort of stuffing as well. I throw all of my dogs toys in the laundry or hand wash them once a week, except for these. When these toys get wet with my dogs saliva, they look like they're not meant to get wet. Even without washing, these seem fine. This toy is probably about 9" long or so if I had to guess. In my opinion, it'd be perfect for a medium sized dog. It's a tiny bit big for my little guy but he manages just fine! If you're looking for a durable toy that your small to medium dog can chew on constantly, look no further!
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Reviewed in the United States on February 3, 2020
★★★★★ 5
Always looking for less destructible dog toys
Size: 8 in, Color: Squirrel, Size: 8 in, Color: Squirrel
I am constantly searching for aggressive chewer dog toys. So many claim to be and one look and you know they haven’t met your dog!! Our golden retriever is so sweet until he gets his claws and teeth into a new toy. We nicknamed him the shredder, as he rips his new toys to pieces. I accidentally stumbled across this toy. We have never owned a leather dog toy. The squirrel is going to give Maverick a run for his money. The edges are double sewn closed. I am very impressed with the quality of this toy for $5.75 which includes the sales price and an additional 10% off coupon. Even without those two incentives the toy is less than $8 prime. The other shapes are similar or cheaper in price and now I see a 50% off 1 toy coupon when you buy 2. What a deal and the squirrel has a squeaker inside. What I like about the squirrel is that there’s less limbs or appendages for Maverick to shred off. The bunny has ears, the raccoon has hands, the buffalo has legs, the bone and retriever stick have a rope, the bear has a neck and head that could be chewed off, similar to the fox who has a tail and snout. The squirrel looks like it would be harder to destroy! The squeaker was hard to push at first but is easier now. Maverick has a black lab sister who loves squirrels, more so than she loves toys, and I found this toy searching for squirrel toys for her. It is offered in 8 other shapes. The squirrel measures almost 8” tall by 5” wide. It’s perfect for a medium or large size dog. Based on the construction of this squirrel dog toy it looks acceptable for an aggressive chewer and won’t break the bank. It’s very affordable. Always supervise! Updates to follow at Christmas:). BTW, the squirrel did not smell bad upon opening.
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Reviewed in the United States on December 3, 2024
★★★★★ 4
Puppy loves it. Well built and fun for her to play with.
Size: 15 in, Color: Retriever
My double doodle mix loved this toy. It is well made and she loves the different texture of the rope. Sadly she has already torn the rope apart and so now it’s just the leather part. This would be the perfect toy for non agressive chewers. Wish the rope lasted a little longer. SPOT is my new favorite company to get her chew toys from now. They’re well built and aren’t expensive like all the other dog toys out there.
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Reviewed in the United States on June 30, 2025
★★★★★ 2
Destroyed in under 10 minutes
Size: 9 in, Color: Large Bone
I bought 2 of these toys, one for my 9 year old great dane who isn't an aggressive chewer, and one for my 6 month old puppy who is average.
In less than 10 minutes both were destroyed and my dane managed to swallow a good chunk.
I wasn't surprised when they both had small holes on the ends and started pulling the stuffing out. The stuffing and squeakers were confiscated immediately, but I let them keep chewing. By the time I came back from throwing the insides away, both dogs had chewed the toys in half and my dane swallowed a chunk when he saw me coming. The puppy was going to do the same thing, but luckily we're working on his "drop" command so he was excited enough for the bigger payout and dropped it.
They didn't just come apart at the seams, the whole toy ripped in half making it too easy to swallow. Neither of them are aggressive cheers and the toys didn't hold up at all. A stuffed animal toy would have lasted longer (and has any time I've allowed it). 10 minutes of playtime is probably too generous , but I'm trying to be fair. If I hadn't been right there watching them, they both would have been able to swallow the whole thing in minutes. Definitely not safe for any amount of actual chewing.
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Reviewed in the United States on November 14, 2025
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