M-D Building Products 43336 36 in. White Vinyl CINCH® U-Shape Slide-On Under Door Seal
M-D Building Products 43336 36 in. White Vinyl CINCH® U-Shape Slide-On Under Door Seal
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M-D Building Products

M-D Building Products 43336 36 in. White Vinyl CINCH® U-Shape Slide-On Under Door Seal

4.2 stars out of 198 reviews
(4.2)|
198 ratings
M-D Building Products 43336 36 in. White Vinyl CINCH® U-Shape Slide-On Under Door SealM D Building Products 43336 36 in White Vinyl CINCH U Shape Slide On Under Door SealM D Building Products 43337 36 in Brown Vinyl CINCH U Shape Slide On Under Door Seal
Actual Color:White
Brown, $14.97, was $16.98
$16.98
selected, White, $14.97

Key item features

  • Durable Vinyl: Made of rigid and flexible vinyl for long-lasting use
  • Effective Seal: Provides a seal between the bottom of the door and threshold to protect against drafts, moisture, dust, and insects
  • Energy Efficient: Helps save on energy by reducing heat or air conditioning loss
  • Easy Installation: No drilling or screws required; simply slides onto the door with a compression fit
  • Customizable Length: Can be cut to the desired length using a hacksaw
  • Standard Fit: Fits standard 1-3/4 inch thick exterior doors
  • Dimensions: Measures 36 inches in length, 2 inches in width, and 1-3/4 inches in height
  • White Finish: Features a clean, white color to match most door styles
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Current price is $14.97
Price when purchased online
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Columbus, 43215
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About this item

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Customer ratings & reviews

4.2 out of 5 stars
stars198 ratings81 reviews
How item rating is calculated
  1. 5 stars68% (134)
  2. 4 stars12% (24)
  3. 3 stars6% (12)
  4. 2 stars2% (4)
  5. 1 star12% (24)

Reviews summary

Pros
  • : Forms a snug fit around the door.
  • : Prevents cold air from entering through the door.
  • : Offers lower price point compared to others.
  • : Provides a secure seal around the area.
  • : Simple setup process with minimal effort required.
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Showing 1-3 of 81 reviews

Mar 20, 2026
melanie
Item details
Color: Brown
5 out of 5 stars review

Verified Purchase

Great product to seal door

Great product. Better made than I thought it would be for the price. Recommended to anyone needing to seal your door. I only dropped a stay for easy installation. You may need help installing to tap it on with a hammer. I used a hammer, cardboard and every bit of strength I had with bad wrists and tendinitis but I made it work. It fits like a tight glove and seals better than the original seal we had on it

Helpful?6CYMUX08OL2C195997122
Dec 14, 2025
eric
Top Reviewer
Item details
Color: Brown
5 out of 5 stars review

Verified Purchase

Excellent product for a windy hallway

This definitely a two-person project. My Wife Christina tremendously helpful since we had to hold the door open and whack the length of 34 inches with a hammer against a 2/4 to get it in place. Then saw off the excess. But does the job!!!

Helpful?6CYMUX08OL2C195997122
Feb 3, 2026
Mike
Item details
Color: White
Sold and shipped bySupply the Home
5 out of 5 stars review

Verified Purchase

Strong and effective weatherstrip

Cut to length to fit your door. You may need to trim off a small tab at each end so the plastic doesn't hit the door jambs if they are a tight fit with the door. Once tapped into place, the sweep stops drafts and seems highly durable.

Helpful?6CYMUX08OL2C195997122