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expiredsoldiersinx posted Jul 10, 2025 3:39 AM

Costco Members: Midea U 12,000 BTU Smart Inverter Window AC with MShield

$310

$390

20% off
+ Free Shippingat Costco Wholesale
138 Comments
38.8K Views
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Deal Details
Costco Wholesale has for their Members: Midea U 12,000 BTU Smart Inverter Window AC with MShield on sale for $309.99. Shipping is free.

Thanks to Community Member soldiersinx for sharing this deal.

About this Item:
  • Ultra-Quiet U-shaped Design Allows Closed Window to Block Compressor Noise, 32dBA
  • Inverter Technology Delivers 35% Energy Savings Compared to DOE Minimum CEER Requirement
  • For Spaces up to 550 Sq. Ft. and Easy Installation with Included Snap in Bracket
  • Matter Certified Unit with App & Voice Control: Control from Anywhere with the App and Voice Assistant
  • Mshield Air Ionizer Technology: Reduces Odors, Smoke, and Gases in the Air

Editor's Notes

Written by SaltyOne | Staff
  • Rated 4 out of 5 stars from customer reviews.
  • $80 manufacturer's savings is valid 7/9/25 through 7/13/25. While supplies last. Limit 5 per member. Sales may not have occurred at original price previously.

Original Post

Written by soldiersinx
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale has for their Members: Midea U 12,000 BTU Smart Inverter Window AC with MShield on sale for $309.99. Shipping is free.

Thanks to Community Member soldiersinx for sharing this deal.

About this Item:
  • Ultra-Quiet U-shaped Design Allows Closed Window to Block Compressor Noise, 32dBA
  • Inverter Technology Delivers 35% Energy Savings Compared to DOE Minimum CEER Requirement
  • For Spaces up to 550 Sq. Ft. and Easy Installation with Included Snap in Bracket
  • Matter Certified Unit with App & Voice Control: Control from Anywhere with the App and Voice Assistant
  • Mshield Air Ionizer Technology: Reduces Odors, Smoke, and Gases in the Air

Editor's Notes

Written by SaltyOne | Staff
  • Rated 4 out of 5 stars from customer reviews.
  • $80 manufacturer's savings is valid 7/9/25 through 7/13/25. While supplies last. Limit 5 per member. Sales may not have occurred at original price previously.

Original Post

Written by soldiersinx

Community Voting

Deal Score
+55
Good Deal
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Top Comments

SennamonTea
463Comments
448Reputation
For those of you with the older recalled unit... and have to cut your cord.... https://www.amazon.com/gp/product...10INT&th=1
Go to Comment
qkumbr
3.8KComments
1.8KReputation
They make you submit a photo including the serial number using an app that tracks location.
Go to Comment
bandsharks
85Comments
34Reputation
Some of us knew better and drilled drainage holes when first installed, before the recall.
Go to Comment

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138 Comments

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Jul 10, 2025 9:12 AM
2.3K Comments
Joined May 2022
1453191819231991Jul 10, 2025 9:12 AM
2.3K Comments
Amazon has this for $50 higher. If you wanna buy from Amazon/ price match, make sure to go to amazon product page and report Costco's lower price in the "Tell us about a lower price?" section. They'll eventually match Costco
3
Jul 10, 2025 10:05 AM
25 Comments
Joined Feb 2014
ESTECOL2992Jul 10, 2025 10:05 AM
25 Comments
Where does the drain hole go? Anyone got oics or a video i can follow. Thanks !
Jul 10, 2025 10:37 AM
363 Comments
Joined Oct 2011
bkichuJul 10, 2025 10:37 AM
363 Comments
Can this be used on a dedicated AC slot on the wall and not a window? Or would a regular unit be better for that?
Jul 10, 2025 11:00 AM
2.8K Comments
Joined Nov 2011
TaintJul 10, 2025 11:00 AM
2.8K Comments
Quote from jakebeez :
Do you have a pic of your cut cord? Thanks
Think you have to take the picture in a certain app so you can't fudge it
Jul 10, 2025 11:01 AM
385 Comments
Joined Jan 2007
armando416Jul 10, 2025 11:01 AM
385 Comments
Quote from sorbitol :
Does the water accumulate on the inside bottom part?
Asking because I plan on plugging all the holes on the outside, and putting a 5 gallon water tank on top of it, to drip inside, to improve cooling.
Now if there is water that pools on the inside, well I should be able to figure that out, I hope
Ummm ... Maybe I'm not fully understanding what you're planning... But do you really think the AC unit's bracket is designed to hold an extra 40 lbs of weight (assuming a monsoon comes along and fills the bucket before much can drain)?
Jul 10, 2025 11:37 AM
2.8K Comments
Joined Sep 2004
spike32Jul 10, 2025 11:37 AM
2.8K Comments
How much is it in the warehouse
Pro
Jul 10, 2025 11:50 AM
3.8K Comments
Joined Dec 2008
qkumbr
Pro
Jul 10, 2025 11:50 AM
3.8K Comments

Our community has rated this post as helpful. If you agree, why not thank qkumbr

Quote from jakebeez :
Do you have a pic of your cut cord? Thanks
They make you submit a photo including the serial number using an app that tracks location.
3

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Jul 10, 2025 11:51 AM
103 Comments
Joined Nov 2008
sakariaJul 10, 2025 11:51 AM
103 Comments

Our community has rated this post as helpful. If you agree, why not thank sakaria

Quote from Davidhh :
Is this a new version that came out after the recall?
Yes, it's the "new" version... which is the same as the old version - they just include a new drain plug, level, and updated instructions in the box.
4
Pro
Jul 10, 2025 11:55 AM
3.8K Comments
Joined Dec 2008
qkumbr
Pro
Jul 10, 2025 11:55 AM
3.8K Comments

Our community has rated this post as helpful. If you agree, why not thank qkumbr

Bought from Costco when it was on sale and was offered a recall refund that would have netted me that plus $80. That was money I was happy to turn down. This thing was a pain in the ass to install. I've hit the point in my SlickDealing career where I have better ways of putting that kind of money in my pocket for less effort.
1
1
1
Jul 10, 2025 11:58 AM
232 Comments
Joined Oct 2015
BigBostonJul 10, 2025 11:58 AM
232 Comments
This vs the HD plus model for $350?

I believe the HD version is a little more efficient someone said on SD
Jul 10, 2025 11:59 AM
982 Comments
Joined Oct 2020
multiuseemailJul 10, 2025 11:59 AM
982 Comments
Quote from mlevenha :
I used crimp connectors with shrink tubing for mine. Waiting for the check currently. Our unit had no mold, but I realized there were no drain holes at the end of last summer when it dumped a ton of water on my carpet as I was taking it out of the window. Found the recall this year and drilled a couple holes.
I had the same experience with my cheap 5000btu one from WM. I hope I remember to check for a pee hole next time I use it (likely for a power outage).
Jul 10, 2025 12:09 PM
332 Comments
Joined Dec 2017
androidfan44Jul 10, 2025 12:09 PM
332 Comments
Quote from SennamonTea :
depending on your unit's power gauge, be careful of the small silver connections, I had to use 5 to reconnect mine https://www.youtube.com/shorts/wSIpuiibI0Q
The silver wires do not carry current. The little wago connector is rated for 20amp , that's impressive.

I replaced my moldy unit with highsense J shaped one from Costco. It is certainly bit louder and regularly makes water sloshing sound. To avoid mold, it's been running non-stop for a few week.

I wish I had drilled holes and avoided falling sick and this return refund drama.
1
Jul 10, 2025 12:20 PM
337 Comments
Joined Jul 2014
DrParnassusJul 10, 2025 12:20 PM
337 Comments
dont listen to the haters. this is the greatest AC unit ever.
Jul 10, 2025 12:21 PM
883 Comments
Joined Oct 2009
dh747Jul 10, 2025 12:21 PM
883 Comments
So the unit in OP is a mold bomb unless one makes precautions, or is that the older model?

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Jul 10, 2025 12:23 PM
106 Comments
Joined Mar 2024
CyanSparrow477Jul 10, 2025 12:23 PM
106 Comments
Quote from 1453191819231991 :
Amazon has this for $50 higher. If you wanna buy from Amazon/ price match, make sure to go to amazon product page and report Costco's lower price in the "Tell us about a lower price?" section. They'll eventually match Costco
Last I asked Amazon, they did not price match, especially warehouse club prices. One of the reasons I cancelled membership.

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