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M-D Building Products 43339 Vinyl Cinch® U-Shape Slide-On Under Door Seal, Easy-to-Install, Energy-Saving, Weatherproof Seal for Doors, Effective Draft Blocker, Ideal for Home (36 Inch, Black)

  • Based on 166 reviews
Condition: New
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$13.49 Why this price?
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Availability: Only 4 left in stock, order soon!
Fulfilled by Amazon

Arrives Sunday, Apr 27
Order within 15 hours and 27 minutes
Available payment plans shown during checkout

Color: Black


Features

  • Superior Weatherproofing: Enhance your home's insulation with the Vinyl Cinch U-Shape Slide-On Under Door Seal. This innovative design effectively blocks drafts and dust, maintaining a comfortable indoor temperature year-round. Made from high-quality vinyl, it ensures a tight seal under your door, reducing energy consumption and lowering heating and cooling costs.
  • Durable & Long-Lasting: Crafted from robust vinyl material, the under door seal is designed to withstand daily wear and tear. Its durable construction ensures long-term performance, making it a reliable solution for door sealing needs. Regardless of varying weather conditions, this under door seal remains intact and effective, providing consistent protection and maintaining its integrity over time.
  • Easy Installation: The slide-on U-shape design allows for quick and simple attachment to the bottom of your door, without the need for special tools or professional assistance. This user-friendly feature makes it an excellent choice for DIY enthusiasts and homeowners looking to improve their home's efficiency. The seal fits snugly onto standard doors, ensuring a secure and seamless fit that enhances its performance.
  • Noise Reduction: The under door seal not only protects against drafts but also acts as an effective noise blocker. This feature is particularly beneficial for homes and offices located in busy areas, where reducing noise levels can significantly enhance comfort and productivity. By creating a sound barrier at the bottom of your door, this seal helps to minimize the intrusion of unwanted noise, ensuring a quieter and more serene indoor environment.
  • Energy Efficiency: Improve your home's energy efficiency with the M-D Building Products Cinch Under Door Seal. By effectively sealing gaps under doors, it prevents the loss of heated or cooled air, allowing your HVAC system to operate more efficiently. This results in lower energy bills and a reduced carbon footprint, contributing to a more sustainable and cost-effective living environment.

Brand: M-D Building Products


Material: Vinyl


Color: Black


Product Dimensions: 36"L x 2"W


Item Thickness: 1.75 Inches


Brand: ‎M-D Building Products


Material: ‎Vinyl


Color: ‎Black


Product Dimensions: ‎36"L x 2"W


Item Thickness: ‎1.75 Inches


Recommended Uses For Product: ‎sealing the bottom of doors


UPC: ‎043374433395


Number of Items: ‎1


Manufacturer: ‎M-D Building Products


Unit Count: ‎3.0 Feet


Part Number: ‎43339


Item Weight: ‎11.2 ounces


Country of Origin: ‎USA


Item model number: ‎43339


Size: ‎36"


Item Package Quantity: ‎1


Included Components: ‎1 ea Door Seal


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: December 19, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Apr 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Not the easiest install, but exceeded expectations
Color: Black
This was easy to install. It stays put, and sealed the gap. I was pleasantly surprised. The install probably isn't going to be easy for everyone. In case it helps, here's what I did: - Removed the door and laid it on a large outdoor table. - Cleaned the door and removed any old and worn seal from the bottom of the door. - Held the new weather strip against the door to mark the correct length. - Marked it with an ordinary pencil. - Cut the weather strip with tin snips or metal cutting shears. - Attached the new seal starting at one corner and worked toward the other corner. This was the hardest part because the fit is really tight. I had to use a rubber mallet to persuade the weather strip to fall into place. I also found it helpful to use a thin metal object to help guide the edges of the weather stripping. It was kind of like getting a bike tire onto the rim for anyone who has seen that process. ... show more
Reviewed in the United States on November 24, 2024 by BM_150

  • Easy to install
Color: Black
Easy to install, thick material, creates a tight seal and works really well. The only downside for me was trimming it down a little, but that’s only because I didn’t have a multitool or saw to make it easier- all I had on hand was a pocket knife. Will be reordering to replace on my other doors! Highly recommend. ... show more
Reviewed in the United States on December 27, 2024 by Amazon Customer

  • Works really well
Color: Black
Used this to stop a draft coming under the door and am very pleased with this. Was a little wide for my interior door but shimmed it for fit and haven’t had a worry about it since. Good product, works well, would buy again!
Reviewed in the United States on January 2, 2025 by Zebra1

  • 2 months and breaking
Color: Black
I thought these were exactly what I wanted - they came and were a bit snug on the door but not too bad. It's been two months and the bottom strips are tearing off from normal opening and closing the door. I can still feel cold coming from my door, but that could also be the door itself. These won't last much longer until they're ribbons. ... show more
Reviewed in the United States on January 16, 2025 by Kate T Kate T

  • Great product
Color: Black
Fit perfectly on an 1-3/4" door. Ideally, I would have liked to see vertical slotted hole's for mounting, but the item was exactly as described, shiped quickly and priced competitively.
Reviewed in the United States on February 10, 2025 by michael a charon

  • Great Product
Color: Black
Easy to install, looks much better than screw on 70's Strip ones.
Reviewed in the United States on January 5, 2025 by Ron Hoffman

  • Worked as intended - reduces drafts
Color: Black
This replaced a seal originally provided with the door. It slips over the bottom of the door and replicates the original seal (I could not install a replacement original seal due to corrosion issues on the door). This works well - a big improvement. Note that you will see that there's a seal.
Reviewed in the United States on January 12, 2025 by mmmg

  • Did not work for me.
Color: Black
Could not open the door fully after installing. Drags on floor. Very difficult to remove.
Reviewed in the United States on February 8, 2025 by Pat Hill

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