M-D Building Products 43339 36 in. Black Vinyl CINCH® U-Shape Slide-On Under Door Seal
M-D Building Products 43339 36 in. Black Vinyl CINCH® U-Shape Slide-On Under Door Seal
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M-D Building Products 43339 36 in. Black Vinyl CINCH® U-Shape Slide-On Under Door Seal

|11 ratings

Key item features

  • Durable Vinyl Construction: Made of rigid and flexible vinyl for long-lasting use.
  • Effective Sealing: 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 through the bottom of the door.
  • Easy Installation: No drilling or screws required; simply slides onto the door with a compression fit that holds firmly in place.
  • Customizable Length: Can be cut to the desired length using a hacksaw to fit standard 1-3/4 in. thick exterior doors.
  • Dimensions: Measures 36 in. L x 2 in. W x 1-3/4 in. H, suitable for most exterior doors.
  • Sleek Black Finish: Features a black color that complements various door styles and finishes.
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Specs

Material, VinylFeatures, Easy InstallationSize, 36 in. L x 2 in. W x 1-3/4 in. HRec. use, DoorColor, BlackColor category, Black

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
  • Black 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:
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Specifications

Material

Vinyl

Features

Easy Installation

Size

36 in. L x 2 in. W x 1-3/4 in. H

Rec. use

Door

Warranty

Warranty information

No

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Warnings

Customer ratings & reviews

4.8 out of 5 stars
stars
11 ratings2 reviews
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Showing 1-2 of 2 reviews

Sep 12, 2026
Reviewer name: GingersMom
Item details
Color: Clear
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Sturdy and easy to use

I did not end up using this door seal as I bought different kinds to see what would work best for my situation, but this door seal seemed sturdy and easy to use.

Helpful?5AC6AC20V72B5321651315
Sep 24, 2024
Reviewer name: Victoria
Sold and shipped byReliable Home Products
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

It worked great on my door.

Helpful?5AC6AC20V72B5321651315
Current price is $15.30
Price when purchased online
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