


Energy Star Certified 17000 BTU 21 SEER2 208-230V Mini Split Air Conditioner and Heater Wifi Enabled
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Energy Star Certified 17000 BTU 21 SEER2 208-230V Mini Split Air Conditioner and Heater Wifi EnabledStay comfortable year round with our powerful 17,000 BTU mini split air conditioner. Designed for spaces up to 1,250 sq. ft., it offers cooling, heating, and dehumidifying functions. With energy efficient technology and smart controls, you can easily customize your comfort while enjoying quiet operation and easy maintenance.
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Your Energy Star Certified 17000 BTU 21 SEER2 208-230V Mini Split Air Conditioner and Heater Wifi Enabled orders ship within 1-2 business days.
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- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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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]
- Please click here for more details>>> Return & Exchange Policy
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4.0 ★★★★★
Based on 1626 reviews
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Product Reviews
★★★★★ 1
It’s $30 to return and quickly STINKS from body heat
Style: Standard - Medium
Original review about $30 return below, but since it cost to return I gave it to my husband. He’s a hot sleeper so other than this pillow we’ve switched to all cotton, linen or wool bedding and it’s made a huge difference. (Polyester is plastic so it reflects your heat back to you and makes you sweat more and doesn’t breathe.)
I truly would not have kept this pillow except $30 felt like a waste just to return and he got excited about it. So okay, it’s his. Well I’m the laundry queen in our household (he does all dishes) and I realized very quickly this pillow would need to be washed OFTEN. Like, once a week is NOT enough.
Something about body heat and this material smells HORRIBLE.
Washing it is obviously not easy, so I handwash the outer layer of the pillow with a very gentle soap (bought for silk). And then it has to hang dry.
It doesn’t matter. I can clean it perfectly, no smell remaining whatsoever, but after two nights, it’s so strong I can smell it JUST STANDING NEAR THE BED.
Look. I mentioned my hubs sleeps hot, sure. But he’s hygienic. This should not be such an issue. It’s never been an issue with any other pillows. The smell doesn’t even smell like him or like B.O. or anything. It’s awful and legitimately churns my stomach.
But can I throw out the stupid $200 thing? Noooo. Now he’s attached. And I’m spending hours of my life each week washing it to keep from feeling sick sleeping near it at night. And to avoid having wasted $200. Hate this thing.
DON’T BUY THIS STUPID PILLOW. Dropping from 2 stars to 1 Because of the smell.
Original review:
I thought I could buy this and see if the height would work for me. It didn’t, and pinched my neck instead. But now the *only* way to return it is to ship through UPS (not return to the UPS Store or Kohl’s or Whole Foods, which would be free).
I was going to return it and try a different size, but such a high price just to *try* it is not worth it to me.
I’ve returned much larger (defective) items in the past without hassle or cost (like an entire heavy duty garage shelf with broken pieces).
Had I known, I would not have ordered in the first place, so I hope this saves someone else.
As for the pillow itself, it was unique, but I couldn’t even really lay my head on it for more than a moment until I had let it air out for more than a week. It REEKED upon arrival. My husband said it smelled like ozone, and my brother compared it to the inside of an airplane. It burned my throat if I tried to lay on it for more than about 30 seconds at a time. Two and a half weeks later, the smell is still slightly there.
So even if it was comfy for me, I would not keep this pillow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2025
★★★★★ 5
The best pillow for side and back sleeping
Style: King - Medium
Bought this pillow for my husband, he loves it. He is back sleeping and has been the best pillow so far. Worth the money. With buy one for me and my daughter. It’s a little pricey but when it comes to sleeping it’s worth the money.highly recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
★★★★★ 5
Best pillow ever
Style: Standard – Low
I have to say, after decades of buying all sorts of pillows, trying to work for me and my short neck, this is THE one.
I bought the low profile ones and OMG it is just perfect for me. I'm finally getting a good nights sleep without fighting a pillow that is too firm or doubling a pillow that is too soft and thin. It's also not as heavy as other memory foam pillows I've tried. I hate a heavy pillow. Yet, it isn't so light weight that it gets pushed off the bed easily if you change positions a lot during the night.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 5
Side sleeping pillow
Style: Standard - Medium
Great pillow for specific people. If you want a firm yet soft pillow for side sleeping then it works great. Not as good for back sleepers but it's very comforting and cooling.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
★★★★★ 5
Great therapeutic pillow
Style: King - Low
I have been having pinch nerve issues where my fingers fall asleep with the pillow I had, so I started to search for pillows that would alleviate that and stay within a budget. Although this pillow cost more than I wanted to spend, the only other pillow that I was considering cost $100 more than this Purple pillow, so I purchased this pillow. The neck pains and pinch nerve issues are mostly gone. It is comfortable, maintains its shape and keeps you cool. I hope this pillow lasts a few years.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
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