---
product_id: 57994352
title: "MD Building Cinch® U-Shape Slide-On Under Door Seal, Brown, 36in"
brand: "m-d building products"
price: "B/.45"
currency: PAB
in_stock: true
category: "M D Building Products"
url: https://www.desertcart.com.pa/products/57994352-md-building-cinch-u-shape-slide-on-under-door-seal
store_origin: PA
region: Panama
---

# Durable vinyl reduces energy waste & bills Seals 3/8”–3/4” gaps to lock in temperature Slide-on U-shape design for effortless install MD Building Cinch® U-Shape Slide-On Under Door Seal, Brown, 36in

**Brand:** m-d building products
**Price:** B/.45
**Availability:** ✅ In Stock

## Summary

> 🚪 Seal the deal on comfort and savings—don’t let drafts crash your vibe!

## Quick Answers

- **What is this?** MD Building Cinch® U-Shape Slide-On Under Door Seal, Brown, 36in by m-d building products
- **How much does it cost?** B/.45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/57994352-md-building-cinch-u-shape-slide-on-under-door-seal)

## Best For

- m-d building products enthusiasts

## Why This Product

- Trusted m-d building products brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Gap Filling:** Seals gaps from 3/8” to 3/4” for airtight comfort and energy savings.
- • **All-Weather Durability:** Robust vinyl stands strong against wear, weather, and time.
- • **Noise-Blocking Barrier:** Create a quieter, more focused space by cutting out unwanted noise.
- • **Eco-Friendly Energy Efficiency:** Lower your carbon footprint and utility bills with superior insulation.
- • **Effortless Slide-On Installation:** No tools, no hassle—upgrade your door seal in minutes.

## Overview

The M-D Building Products Vinyl Cinch U-Shape Door Bottom Seal is a high-quality, easy-to-install weatherstripping solution designed to fit standard 36” x 1-3/4” doors. Made from durable vinyl, it effectively seals gaps between 3/8” and 3/4”, blocking drafts, dust, and noise while enhancing energy efficiency and reducing heating and cooling costs.

## Description

M-D Building Products Vinyl Cinch U-Shape Door Bottom Seal, Slide-On Weatherstripping Draft Stopper, Easy to Install, Fits 36” x 1-3/4” Doors, Fills 3/8”- 3/4” Gaps, 43337, Brown - desertcart.com

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00PKSFEAI |
| Best Sellers Rank | #1,269 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #30 in Door Hardware & Locks |
| Brand Name | M-D Building Products |
| Color | Brown |
| Customer Reviews | 4.2 4.2 out of 5 stars (7,275) |
| Global Trade Identification Number | 00043374433371 |
| Included Components | MD Building - 43337 |
| Item Dimensions L x W | 36"L x 2"W |
| Item Thickness | 1.75 Inches |
| Item Type Name | MD Building - 43337 |
| Item Weight | 0.71 Pounds |
| Manufacturer | M-D Building Products |
| Manufacturer Part Number | 43337 |
| Manufacturer Warranty Description | Warranty |
| Material Type | Vinyl |
| Model Number | MD Building - 43337 |
| Number of Items | 1 |
| Recommended Uses For Product | door |
| UPC | 043374433371 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** M-D Building Products
- **Color:** Brown
- **Item Thickness:** 1.75 Inches
- **Material:** Vinyl
- **Product Dimensions:** 36"L x 2"W

## Images

![MD Building Cinch® U-Shape Slide-On Under Door Seal, Brown, 36in - Image 1](https://m.media-amazon.com/images/I/61iepv0isGL.jpg)

## Available Options

This product comes in different **Color, Size, Number Of Items** options.

## Questions & Answers

**Q: Can I cut this with a sharp scissor?**
A: The scissors would have to be real sharp and have strong heavy blades like garden shears.  I started the cut with a heavy, sharp kitchen knife and finished it with a small electric hand 
saw. Measure and cut before you put it under the door or it will be too difficult to cut after installation.  This is an excellent product,  so be careful not to ruin it.

**Q: The first product description states the material as Aluminum, Stainless Steel. Can I assume this is incorrect and that it is 100% vinyl?**
A: Yes 100% vinyl

**Q: Will this stop unwanted smells, like cigarettes, from getting inside?**
A: I think it will help, but I'm not sure it would be 100% effective, as cigarette smoke tends to permeate the smallest of spaces.

**Q: Will this work on carpet?**
A: Don't see why not.  Carpet has a little more give than a metal threshold so should be fine.  I have installed 2 of these on front doors of homes and worked great with metal thresholds.

## Frequently Bought Together

- M-D Building Products 43337 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, Brown)
- Kerf Weather Stripping Door Seal for Large Gap and Easy Installation (40 Feet, White)
- Weather Stripping Door Seal Strip - Soundproof Q-Shaped Foam for Exterior Door Frame, Large Gap Seal, Noise Cancelling, Easy to Install (Black, 26FT)

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**Shop now:** [https://www.desertcart.com.pa/products/57994352-md-building-cinch-u-shape-slide-on-under-door-seal](https://www.desertcart.com.pa/products/57994352-md-building-cinch-u-shape-slide-on-under-door-seal)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-07-28*