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Description
MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (9K + 9K + 12K + 12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling CassettesMRCOOL DIY 5th Gen Multi Zone 6 Zone 55,000 BTU 22 SEER2 (9K + 9K + 12K + 12K + 12K + 18K) Ductless Mini Split Air Conditioner & Heat Pump with Ceiling Cassettes The MRCOOL DIY 5th Generation 55,000 BTU 6 Zone Ceiling Cassette Mini Split System provides whole home comfort and industry leading efficiency no professional installation required. This complete configuration pairs a powerful 55K BTU condenser with six low profile ceiling cassette air
MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (9K + 9K + 12K + 12K + 12K + 18K) Ductless Mini-Split Air Conditioner & Heat Pump with Ceiling Cassettes
The MRCOOL DIY 5th Generation 55,000 BTU 6-Zone Ceiling Cassette Mini-Split System provides whole-home comfort and industry-leading efficiency — no professional installation required. This complete configuration pairs a powerful 55K BTU condenser with six low-profile ceiling cassette air handlers in a (9K + 9K + 12K + 12K + 12K + 18K) layout to perfectly balance cooling and heating across every space.
Built for DIY installation using MRCOOL’s patented Quick-Connect® pre-charged line sets, this 22 SEER2 system eliminates the need for vacuuming or refrigerant charging. Ideal for homes, garages, and offices, it offers whisper-quiet performance, smart control via app, Alexa, or Google Assistant, and dependable operation from −13 °F to 122 °F.
Key Features & Benefits
- ✔ 6-Zone kit configuration (9K + 9K + 12K + 12K + 12K + 18K) with 55K BTU outdoor unit.
- ✔ 22 SEER2 efficiency and 10.6 HSPF2-4 rating for lower energy bills.
- ✔ Heats to −13 °F and cools to 122 °F for year-round comfort.
- ✔ Quick-Connect® R-454B line sets — no vacuum pump or refrigerant required.
- ✔ Flush-mounted ceiling cassette air handlers for a clean, modern look.
- ✔ Smart HVAC App control with Alexa & Google Assistant compatibility.
- ✔ DIYPro® cable included — no electrical conduit needed.
- ✔ Gold Fin® anti-corrosion coating extends condenser life.
- ✔ Follow Me® remote sensor tracks ambient temperature for precise comfort.
- ✔ Energy Star, AHRI & ETL listed for verified efficiency and safety.
💡 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 app and voice control. Use the MRCOOL or SmartHVAC app to schedule runtimes, adjust zones, and control temperature via 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 + 9K + 12K + 12K + 12K + 18K)
- Total BTU Capacity: 55,000 Heating / 47,000 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 5031495, UL Listed
- 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.
Enjoy fast nationwide delivery, expert support, and factory-fresh equipment backed by strong warranty protection.
Enjoy fast nationwide delivery, expert support, and factory-fresh equipment backed by strong warranty protection.
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
4.5 ★★★★★
Based on 1373 reviews
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Product Reviews
★★★★★ 4
The squeeker isn't durable, but the balls themselves are.
Color: S6-muti-color, Color: S6-muti-color
I have two 70+lb, ball obsessed dogs (a field bred Golden Retriever, and an Old Time Scotch Collie), and these balls are living up to the abuse they're receiving.
In the fall we always lose a ball or two in the yard due to getting lost in leaves or longer grass, so I always try and buy a multi pack at the start of the season, so went with these this year. I'm glad I did. Great price for a 6 pack, they fit the medium Chuck-It launcher (a little loosely, but they throw just fine), have great bounce, they FLOAT (which means I didn't lose any at the beach), and they're super durable to the dreaded "mouth squish." The squeaker dies pretty quick, like, within a day, but it isn't the kind that can fall out or choke your dog, so no worries there.
The boys are happy, I'm happy, my wallet is happy - I've already ordered another pack.
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Reviewed in the United States on November 2, 2024
★★★★★ 5
Good balls
Color: S6-glow
My dog is a chewer, and these have held up for close to a year actually a pretty good product
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Reviewed in the United States on May 27, 2026
★★★★★ 3
Disappointed
Color: S6-muti-color
These were great for about 20 minutes then they stopped squeaking...we have 2 left that I have saved but the other 4 do not squeak anymore...disappointed as my dog loves to squeak things...would not buy these again...My dog is only an 8lb dog too...but he can still play with the balls without the squeak...
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Great Value for a ball my dog loves!
Color: S6-muti-color
I wish these ball were in the subscription program! My dog gets sooo excited by the new ball, but her interest in things lasts for a few days. She kills the squeak within 11minutes, but the squeaker stays in place rather than becoming a chocking or swallow hazard, and she still loves to chew it. Next, we must throw the ball approximately 723 times the first day, possibly 496 times on day 2, and just 3- 4 on day 3, at which point she will chase the ball before hollering "it's over here if you need it," while she checks on the chipmunk den. We currently have 17 of these balls in our yard (because we have given several leftovers to a less discriminating doodle next door). These balls hold up really well, get her extremely active for the first couple of days, and are a much cheaper than doggie daycare (after an active morning with a new ball, she is happy to chew on it and sleep much of the day). I always have these on hand!
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Reviewed in the United States on November 22, 2025
★★★★★ 4
Pieces chewed off
Color: white & green
My Aussiedoodle loves it. I throw it down the hallway, it bounces crazy, and he chases it. The only complaint is that he can't chew much of the ball part. So now I have to have it put away and brought out for special playtime.
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Reviewed in the United States on April 9, 2026