---
product_id: 20006937
title: "4\" x 36\" (3') Type B Double Wall Round Gas Vent Pipe UL Listed with SureLock Technology (#4M3)"
brand: "metal-fab"
price: "20459 som"
currency: KGS
in_stock: true
reviews_count: 3
url: https://www.desertcart.kg/products/20006937-4-x-36-3-type-b-double-wall-round-gas
store_origin: KG
region: Kyrgyzstan
---

# 36" Length SureLock Tech UL Listed 4" x 36" (3') Type B Double Wall Round Gas Vent Pipe UL Listed with SureLock Technology (#4M3)

**Brand:** metal-fab
**Price:** 20459 som
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock in Safety and Style!

## Quick Answers

- **What is this?** 4" x 36" (3') Type B Double Wall Round Gas Vent Pipe UL Listed with SureLock Technology (#4M3) by metal-fab
- **How much does it cost?** 20459 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/20006937-4-x-36-3-type-b-double-wall-round-gas)

## Best For

- metal-fab enthusiasts

## Why This Product

- Trusted metal-fab brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** UL Listed for your peace of mind.
- • **Versatile Use:** Perfect for various gas venting applications.
- • **Innovative Design:** SureLock Technology ensures a secure fit.
- • **Seamless Assembly:** Join with ease, thanks to a 1.5" overlap!
- • **Durable Construction:** Built to last with high-quality materials.

## Overview

The 4" x 36" Type B Double Wall Round Gas Vent Pipe by Metal-Fab, Inc. is engineered for safety and efficiency. With its UL Listing and innovative SureLock Technology, this vent pipe ensures a secure and reliable installation for your gas venting needs. Designed for seamless assembly, it features a 1.5" overlap for easy joining, making it a must-have for professionals seeking quality and durability.

## Description

4" x 36" (3') Type B Double Wall Round Gas Vent Pipe UL Listed with SureLock Technology (#4M3)

## Features

- PLEASE NOTE: Vent overlaps 1.5" when joined together, thus assembled length is 1.5" less than listed length.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Metal-Fab, Inc. |
| Part Number | 4M3 |
| Item model number | 4M3 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![4" x 36" (3') Type B Double Wall Round Gas Vent Pipe UL Listed with SureLock Technology (#4M3) - Image 1](https://m.media-amazon.com/images/I/71wTu7ZKEzL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Worked as intended
  

*by B***N on Reviewed in the United States on August 10, 2024*

Used for a hot water heater to go through the roof.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Probably the best there is!
  

*by N***Y on Reviewed in the United States on May 21, 2015*

I needed a stovepipe that could be close to wood.  This one requires only one inch!  Caveat- the last piece to the chimney is difficult to cut to size because the steel is VERY hard.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Five Stars
  

*by A***R on Reviewed in the United States on November 6, 2017*

Great product.

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**Shop now:** [https://www.desertcart.kg/products/20006937-4-x-36-3-type-b-double-wall-round-gas](https://www.desertcart.kg/products/20006937-4-x-36-3-type-b-double-wall-round-gas)

---

*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-05-27*