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iconian | Staff 32.7K Views
Aug 19, 2026 2:47 PM

2-Pk 2" x 39" GroTheory Under Door Draft Stoppers

$4.00

$9.99

59% off
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Deal Details
Update: This very popular deal is still available.

Grotheory US via Amazon has 2-Pack 2" x 39" GroTheory Under Door Draft Stoppers (White) on sale for $9.99 - $6 with promo code QFAJ35M3 or 8DIFPNMK at checkout = $3.99. Shipping is free w/ Prime or on $35+ orders.

Thanks to Deal Editor iconian for sharing this deal.
  • Note: You must be logged in to clip coupons and apply promo codes. If a code doesn't work right away, try applying it a few times across different interfaces such as mobile or desktop, as some codes may not apply consistently. If issues persist, refresh the page, re-enter the code, or revisit the cart before checking out.
Details:
  • Silicone door draft stopper that is flexible, bendable and non-damaging to floors
  • Size: 2" W × 39" L
  • Triple design to reduce noise and prevent dust entry
  • Self-adhesive with strong super glue for easy installation
  • Cut to size as needed then peel and stick
  • Helps prevent air conditioning and heating leakage to improve efficiency
  • Sturdy construction for longer service life
  • Works on many doors and windows including glass, screen, sliding, wood and storm doors

Editor's Notes

Written by SubZero5 | Staff
  • At the time of this posting, our research indicates that this is $7.20 lower than the next best comparable online prices starting from $11.19.
  • This offer matches our previous Frontpage Deal from July 2026.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by iconian | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This very popular deal is still available.

Grotheory US via Amazon has 2-Pack 2" x 39" GroTheory Under Door Draft Stoppers (White) on sale for $9.99 - $6 with promo code QFAJ35M3 or 8DIFPNMK at checkout = $3.99. Shipping is free w/ Prime or on $35+ orders.

Thanks to Deal Editor iconian for sharing this deal.
  • Note: You must be logged in to clip coupons and apply promo codes. If a code doesn't work right away, try applying it a few times across different interfaces such as mobile or desktop, as some codes may not apply consistently. If issues persist, refresh the page, re-enter the code, or revisit the cart before checking out.
Details:
  • Silicone door draft stopper that is flexible, bendable and non-damaging to floors
  • Size: 2" W × 39" L
  • Triple design to reduce noise and prevent dust entry
  • Self-adhesive with strong super glue for easy installation
  • Cut to size as needed then peel and stick
  • Helps prevent air conditioning and heating leakage to improve efficiency
  • Sturdy construction for longer service life
  • Works on many doors and windows including glass, screen, sliding, wood and storm doors

Editor's Notes

Written by SubZero5 | Staff
  • At the time of this posting, our research indicates that this is $7.20 lower than the next best comparable online prices starting from $11.19.
  • This offer matches our previous Frontpage Deal from July 2026.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by iconian | Staff

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+177
Good Deal

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36 Comments

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Aug 20, 2026 6:49 PM
525 Comments
Joined Jul 2007
dnguyen800Aug 20, 2026 6:49 PM
525 Comments
Quote from jw255 View quoted comment :
Fart sound suppressor on bathroom doors FTW!
I am using this for that reason. Door-to-floor gap is too large, can hear too much.
1
Aug 22, 2026 10:33 AM
6.3K Comments
Joined Jul 2017
Luigis3rdcousinAug 22, 2026 10:33 AM
6.3K Comments
It would only let me buy one. I wanted a couple more. But glad I was able to order it for 4$
Pro
Deal Editor
Aug 24, 2026 9:52 PM
2.4K Comments
Joined Nov 2006
Wiznaz
Pro
Deal Editor
Aug 24, 2026 9:52 PM
2.4K Comments
This popular deal is still available
Aug 24, 2026 10:22 PM
2.1K Comments
Joined May 2008
haynstyle78Aug 24, 2026 10:22 PM
2.1K Comments
Dead. Code applies but only takes $1 off.
Pro
Global Mod
Aug 24, 2026 10:25 PM
5K Comments
Joined May 2008
pur
Pro
Global Mod
Aug 24, 2026 10:25 PM
5K Comments
Quote from haynstyle78 View quoted comment :
Dead. Code applies but only takes $1 off.
It looks like it still takes off $6, so it sounds like you're getting a different promo. If you're using the Amazon app don't forget to tap the arrow to apply code.
Aug 24, 2026 10:32 PM
995 Comments
Joined Nov 2004
lizard5102Aug 24, 2026 10:32 PM
995 Comments
Only got $1 off. Not worth it for me. Amazon personalized pricing is really pissing me off.
Aug 24, 2026 10:48 PM
10 Comments
Joined Apr 2019
birdies62Aug 24, 2026 10:48 PM
10 Comments
I have 2 of very similar product at Amazon in a bigger gap size that I put at the bottom of 2 vinyl gates in a privacy fence so my one skinny cat wouldn't squeeze under the gates when we go outside. They've been on for 4 years now in all elements with no sign of getting loose at all yet. Work perfect outside.

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Aug 24, 2026 11:19 PM
6.6K Comments
Joined Aug 2010
gamingdroidAug 24, 2026 11:19 PM
6.6K Comments
Quote from GreyRiver2116 View quoted comment :
Promo code not working
Worked for me. Giving it a shot for $4.
Aug 24, 2026 11:20 PM
6.6K Comments
Joined Aug 2010
gamingdroidAug 24, 2026 11:20 PM
6.6K Comments
Quote from birdies62 View quoted comment :
I have 2 of very similar product at Amazon in a bigger gap size that I put at the bottom of 2 vinyl gates in a privacy fence so my one skinny cat wouldn't squeeze under the gates when we go outside. They've been on for 4 years now in all elements with no sign of getting loose at all yet. Work perfect outside.
Anyone know if you have to remove it, if it rips out the paint or does damage to the door?
Aug 24, 2026 11:31 PM
10 Comments
Joined Apr 2019
birdies62Aug 24, 2026 11:31 PM
10 Comments
Quote from gamingdroid View quoted comment :
Anyone know if you have to remove it, if it rips out the paint or does damage to the door?
As strong as mine are stuck on, I'd think they definitely would take paint off. Maybe if you work goo gone or something like that in there it would come off smooth or a heat gun. As far as the vinyl gates I believe it would leave a sticky film that probably could be removed with some work. I can't say for sure because they haven't budged for 4 years. Another suggestion - try to make sure you have it where you want before you press it on hard. Very sticky.
Aug 25, 2026 12:07 AM
1.7K Comments
Joined Nov 2006
sidewinder33625Aug 25, 2026 12:07 AM
1.7K Comments
the seals on the bottom of the door that leads into the garage are all ripped ...hopefully this will be a good alternative.
Aug 25, 2026 2:02 AM
225 Comments
Joined Jan 2009
defactsAug 25, 2026 2:02 AM
225 Comments
Even though this deal was posted 8/19, can confirm it still works on Amazon app. Ordered 2 sets. $12 off
Aug 25, 2026 2:36 AM
7 Comments
Joined Sep 2013
GeorgeG8308Aug 25, 2026 2:36 AM
7 Comments
The code only gave me $2 off my order. Not worth going back and forth trying to get a code to work.
Aug 25, 2026 12:40 PM
35 Comments
Joined Aug 2016
joeyucfAug 25, 2026 12:40 PM
35 Comments
May grab these, need it for the opposite of cold air in though. Hopefully it keeps my cold AC air from leaking in to the hot garage!

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Aug 25, 2026 7:17 PM
1.2K Comments
Joined Jul 2015
darius11Aug 25, 2026 7:17 PM
1.2K Comments
Wow. On iPhone gives me $1 off with the code. On desktop gives me $6 off. Prime is expiring November 1 I will have a hard time renewing if these shenanigans continue.

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