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MRCOOL DIY 5th Gen Ceiling Cassette (6K-9K-18K-18K) 4-Zone 55,000 BTU Ductless Mini Split Heat Pump & AC

Marsoni M251S
Sale price$5199.50
Pay 4 payments of $1299.88 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
MRCOOL DIY 5th Gen Ceiling Cassette (6K-9K-18K-18K) 4-Zone 55,000 BTU Ductless Mini Split Heat Pump & ACThe MrCool DIY 4 Zone Mini Split featuring a 6K 9K 18K 18K configuration is a versatile system ideal for a master suite and 3 standard rooms. Featuring the maximum capacity 55k condenser, this industrial grade residential unit ensures peak performance even in extreme temperatures for large properties. Designed to handle the complex needs of modern family homes, this four zone setup offers superior coverage for split levels and medium sized properties.
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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]
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4.5 ★★★★★
Based on 1159 reviews
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C
Verified Purchase
ChrisA
Charlottesville, US
★★★★★ 5
perfect fit for 2005 acura rsx s-type
Why did you pick this product vs others?: fixed my PS pump leak fast.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 7, 2025
J
Verified Purchase
J.P.
Port Orchard, US
★★★★★ 5
So good. No more whine!
Worked like a charm on a 2007 & 2009 Accord 4cyl
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
P
Verified Purchase
Placeholder
Los Angeles, US
★★★★★ 4
No instructions
No instructions... No idea which one is the high pressure side.They seem to be good quality but I have not used them yet...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
T
Verified Purchase
Turbeau
Fort Morgan, US
★★★★★ 5
Great fit for a 2005 Honda Element
These fit my 2005 Honda Element perfectly. Solved a small leak issue. I’ve had these installed for about one season so far (winter into summer) and they are still holding up. The install is simple if you’re confident working on your power steering system. Overall happy. No complaints
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
M
Verified Purchase
Michael Garcia
Massapequa, US
★★★★★ 5
Good value
Good value. Much better to get a new pump
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026

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