---
product_id: 57994352
title: "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"
brand: "m-d building products"
price: "฿2174"
currency: THB
in_stock: true
reviews_count: 13
category: "M D Building Products"
url: https://www.desertcart.co.th/products/57994352-m-d-building-products-vinyl-cinch-u-shape-door-bottom
store_origin: TH
region: Thailand
---

# Durable vinyl reduces energy bills & noise Seals 3/8”–3/4” gaps to block drafts & dust Slide-on U-shape design for effortless install 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

**Brand:** m-d building products
**Price:** ฿2174
**Availability:** ✅ In Stock

## Summary

> 🚪 Seal the deal on comfort and savings—your door’s new best friend!

## Quick Answers

- **What is this?** 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 by m-d building products
- **How much does it cost?** ฿2174 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/57994352-m-d-building-products-vinyl-cinch-u-shape-door-bottom)

## 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

- • **Energy-Smart Solution:** Cuts heating & cooling costs by locking in your indoor climate
- • **Precision Gap Filling:** Seamlessly seals door gaps from 3/8” to 3/4” for max insulation
- • **Noise-Blocking Barrier:** Creates a quieter space by minimizing outside noise intrusion
- • **Durable Vinyl Construction:** Built to last through daily wear and all weather conditions
- • **Effortless Slide-On Installation:** No tools needed—DIY-friendly for instant weatherproofing

## Overview

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

Review: Door insulation - Easy installation works great
Review: Great bottom door seal. - This is a very good bottom door seal. I would recommend that you use a wooden block to hammer the weatherstripping into place as it will slide in much easier than trying to do it by sliding with your hands. The bottom seal fit good and tight. No more drafts under the door.

## 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 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #5,646 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #143 in Door Hardware & Locks |
| Brand | M-D Building Products |
| Certification | (unset) |
| Color | Brown |
| Customer Reviews | 4.2 4.2 out of 5 stars (2,241) |
| Date First Available | November 13, 2014 |
| Global Trade Identification Number | 00043374433371 |
| Included Components | MD Building - 43337 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Thickness | 1.75 Inches |
| Item Weight | 11.4 ounces |
| Item model number | MD Building - 43337 |
| Manufacturer | M-D Building Products |
| Material | Vinyl |
| Number Of Pieces | 1 |
| Number of Items | 1 |
| Part Number | 43337 |
| Pattern | Solid |
| Product Dimensions | 36"L x 2"W |
| Recommended Uses For Product | door |
| Shape | Rectangle |
| Style | Door Seal |
| UPC | 043374433371 |
| Unit Count | 1.0 Count |
| Warranty Description | Warranty |

## Product Details

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

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/61iepv0isGL.jpg)

## 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Door insulation
*by T***. on January 24, 2026*

Easy installation works great

### ⭐⭐⭐⭐⭐ Great bottom door seal.
*by A***A on November 26, 2025*

This is a very good bottom door seal. I would recommend that you use a wooden block to hammer the weatherstripping into place as it will slide in much easier than trying to do it by sliding with your hands. The bottom seal fit good and tight. No more drafts under the door.

### ⭐⭐⭐⭐⭐ Works well, easy to install
*by T***R on January 28, 2026*

Works very well. I had a very drafty gap under my front door. Removing the old metal kick plate and replacing with this took only a few minutes. Mostly to trim it down to the right size. Also installed one on the bathroom door to prevent hot shower air from leaking out during a bath.

## 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)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.th/products/57994352-m-d-building-products-vinyl-cinch-u-shape-door-bottom](https://www.desertcart.co.th/products/57994352-m-d-building-products-vinyl-cinch-u-shape-door-bottom)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-19*