SKU: 56720134912

MRCOOL DIY 5th Gen 3-Zone 42,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with Pre-Charged Line Sets (6K+18K+18K), DIYM355HP

Sale price$3917.70 Regular price$4353.00
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Shipping Estimate
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  • USA
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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For Your Every Summer RSVP, with Code: SUMMER15

Description

MRCOOL DIY 5th Gen 3-Zone 42,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with Pre-Charged Line Sets (6K+18K+18K), DIYM355HPTake control of your comfort with the MRCOOL DIY 5th Gen Multi Zone Mini Split System the easiest and most affordable way to get powerful, energy saving heating and cooling without hiring a pro. Three Rooms, Perfect Comfort: Heat or cool three spaces that are 150 sq. ft., 750 sq. ft. and 750 sq. ft. each with independent temperature control for personalized comfort. Truly DIY Friendly: Forget expensive installs no HVAC license or special tools

Take control of your comfort with the MRCOOL DIY 5th Gen Multi-Zone Mini Split System - the easiest and most affordable way to get powerful, energy-saving heating and cooling without hiring a pro.

  • Three Rooms, Perfect Comfort: Heat or cool three spaces that are 150 sq. ft., 750 sq. ft. and 750 sq. ft. each with independent temperature control for personalized comfort.
  • Truly DIY-Friendly: Forget expensive installs - no HVAC license or special tools required. If you can use basic hand tools, you can do this.
  • No Hassle Setup: Comes with pre-charged Quick-Connect® line sets, so there’s no messy refrigerant handling or vacuuming. Just connect and enjoy.
  • Year-Round Savings: Boasting up to 22.0 SEER2 cooling efficiency and 10.6 HSPF2-4 heating performance, this system delivers serious energy savings.
  • Built for Every Season: Stay cozy even in the dead of winter - reliable heating works all the way down to -13°F.
  • Strong Warranty Protection: Includes 7-Year Compressor Replacement and 5-Year Parts Coverage.

Whether it’s hot summer days or freezing winter nights, the MRCOOL DIY Mini Split keeps your home comfortable and your energy bills low. Smart. Simple. Affordable.

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: 56720134912

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4.4 ★★★★★
Based on 6 reviews
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Verified Purchase
David
Carnegie, US
★★★★★ 5
Works for me
Size: 36 sqft
Sticky so don’t let it touch you or each other but it comes off and works fine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
A
Verified Purchase
Amazon Customer
Birmingham, US
★★★★★ 5
Xxxxxx
Size: 36 sqft
Great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
E
Verified Purchase
eff me
Birmingham, US
★★★★★ 3
great for what im doing. maybe not as good in a vehicle though
Size: 36 sqft
decent product. not as thick as typical sound deadening but definitely cheaper. and for my application, i didnt need a name brand thicker material. i am putting it on our heat and ac vent and intake pipes during our remodel. sound travels from room to room in our old house through these vents and pipes so a little sound deadening goes a long way
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
M
Verified Purchase
Miguel
Los Angeles, US
★★★★★ 5
Quality
Size: 36 sqft
Good item
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Reviewed in the United States on May 30, 2026
A
Verified Purchase
Amazon Customer
Battle Creek, US
★★★★★ 2
Buy the individual cross cut sheets, not these rolls.
Size: 36 sqft
I ordered two different types, individually cross cut foil rectangular pieces and these rolls both containing 36. sq. ft. The cross cut sheet blows this away. This stuff is much thinner, much less butyl rubber, much flimsier foil, and needs twice as much to have the same effect. Once you put it on, you cant remove it. The other brand's 2mm is much thicker than this.
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Reviewed in the United States on June 3, 2026

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