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

4.2 stars out of 173 reviews

(4.2)|

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 M D Building Products 43337 36 in Brown Vinyl CINCH U Shape Slide On Under Door Seal

Actual Color:White

Brown, $13.38, 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

Generated by AI

Specs

Attachment style
Slide-On
Door bottom & sweep type
Under-door
Features
Easy Installation
Material
Vinyl

Reviews summary

Pros

: Can be cut to fit door width with basic tools.
: Forms a snug fit around the door.
: Made with flexible flaps and features that can be adjusted.
: Prevents cold air from entering through the door.
: Offers lower price point compared to others.
: Provides a secure seal around the area.

Generated by AI

Current price is $14.97

Price when purchased online

Free 30-day returns

How do you want your item?

Columbus, 43215

Arrives between Feb 27 - Mar 2

Shipping fee $10.00

Sold and shipped by Reliable Home Products

4.67906976744186 stars out of 5, based on 215 seller reviews(4.7)

Report an issue with this seller

Free 30-day returns

Other sellers

$24.13

+Free shipping

Shipping, arrives by Thu, Feb 26 to Columbus, 43215

Sold and shipped by Supply the Home

Free 30-day returns

$22.95

+Free shipping

Shipping, arrives by Fri, Feb 27 to Columbus, 43215

Sold and shipped by etailSuperStore

Free 30-day returns

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About this item

Product details

The M-D Vinyl U-Shape CINCH® Slide-On Under Door Seal features vinyl fins for protection from drafts, moisture, dust and insects. Save on energy by sealing the bottom of the door and keeping the heat or air conditioning from escaping. CINCH® products are easy to install since they do not require hardware and simply slide on to the door. A compression fit secures the Under Door Seal to the bottom of the door. Before installation, cut to desired length using a hacksaw.

Made of rigid and flexible vinyl
Provides seal between the bottom of the door and threshold
36 in. L x 2 in. W x 1-3/4 in. H
White color
Seals to protect against drafts, moisture, dust and insects
Save on energy by sealing the bottom of the door to reduce loss of heat or air conditioning
Compression fit holds firmly in place
Cut Under Door Seal with hacksaw to desired length
Fits standard 1-3/4 in. thick exterior door
No drilling or screws required. Does not damage door.

info:

We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.

Specifications

Attachment style

Slide-On

Door bottom & sweep type

Under-door

Features

Easy Installation

Material

Vinyl

Warranty

Warranty information

No

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warnings

Warning Text

proposition 65 reasons:titanium dioxide, other chemicals

WARNING: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Customer ratings & reviews

4.2 out of 5 stars

stars173 ratings73 reviews

How item rating is calculated

Reviews summary

Pros

: Can be cut to fit door width with basic tools.
: Forms a snug fit around the door.
: Made with flexible flaps and features that can be adjusted.
: Prevents cold air from entering through the door.
: Offers lower price point compared to others.
: Provides a secure seal around the area.

Generated by AI

Customer images

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.

Sort by |

Showing 1-3 of 73 reviews

Dec 14, 2025

eric

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?

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?

Nov 15, 2024

Will

Item details

Color: Brown

Sold and shipped bySupply the Home

5 out of 5 stars review

Verified Purchase

Well made, designed for snug fit trim/saw to size

Trim to size of door with a hand saw of some Type (I used a hacksaw.) then slide it on to bottom of open door. Note; the more it slides on the more resistance to moving it became. (To hold it securely in place when on completely.) To push it on: I used a hammer turned sideways to tap-apply even pressure on the side to avoid any possible impact damage to finish sliding it in place. I would buy it again.

Helpful?

reply from MDBuildingProductsSupport

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

Key item features

Specs

Reviews summary

How do you want your item?

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