---
product_id: 25404209
title: "SL728 28-Inch Lock-End Garage Door Extension Spring (.177\" #7 Wire)"
brand: "e900 hardware"
price: "60638CFA"
currency: XOF
in_stock: true
reviews_count: 8
url: https://www.desertcart.sn/products/25404209-sl728-28-inch-lock-end-garage-door-extension-spring-177
store_origin: SN
region: Senegal
---

# Safety First Easy Install Rust Resistant SL728 28-Inch Lock-End Garage Door Extension Spring (.177" #7 Wire)

**Brand:** e900 hardware
**Price:** 60638CFA
**Availability:** ✅ In Stock

## Summary

> 🔩 Spring into Safety and Strength!

## Quick Answers

- **What is this?** SL728 28-Inch Lock-End Garage Door Extension Spring (.177" #7 Wire) by e900 hardware
- **How much does it cost?** 60638CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/25404209-sl728-28-inch-lock-end-garage-door-extension-spring-177)

## Best For

- e900 hardware enthusiasts

## Why This Product

- Trusted e900 hardware brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **1-Year Warranty:** Peace of mind with a full year of coverage!
- • **Heavy-Duty Performance:** Supports doors up to 300lbs with 4 springs!
- • **Quick DIY Installation:** Replace old springs in no time—no pro needed!
- • **Safety Containment Rod:** Stay safe with coils that won't fly off!
- • **Corrosion Resistant Coating:** Built to last with powder-coated steel!

## Overview

The SL728 28-Inch Lock-End Garage Door Extension Spring is designed for robust performance, accommodating garage doors weighing between 90-300lbs. With a user-friendly installation process, a safety containment rod, and a corrosion-resistant finish, these springs ensure durability and safety. Plus, enjoy a 1-year warranty for added confidence in your purchase.

## Description

SL728 28-Inch Lock-End Garage Door Extension Spring (.177" #7 Wire)

## Features

- SPRINGS FOR YOUR ONE-PIECE GARAGE DOOR OR TOY HAULER - SL728 springs handle a 90-150lb. door with 2 springs or a 150-300lb. door with 4 springs
- SIMPLE INSTALLATION - install new or replace old, rusty springs quickly and by yourself
- SAFETY CONTAINMENT ROD - if and when spring breaks, the coils will remain wrapped around middle rod for protection
- CORROSION RESISTANT - powder coated steel coils to help slow rusting process over spring life
- 1-YEAR WARRANTY - springs are warranted for 1 year from purchase date

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Mersur |
| Part Number | SL728-C |
| Item Weight | 4.6 pounds |
| Product Dimensions | 1.31 x 1.31 x 31 inches |
| Item model number | Mersur |
| Is Discontinued By Manufacturer | No |
| Size | 28" |
| Color | Black |
| Item Package Quantity | 1 |
| Included Components | Mersur Portable Machine for Kids |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![SL728 28-Inch Lock-End Garage Door Extension Spring (.177" #7 Wire) - Image 1](https://m.media-amazon.com/images/I/61cqUILQixL.jpg)
![SL728 28-Inch Lock-End Garage Door Extension Spring (.177" #7 Wire) - Image 2](https://m.media-amazon.com/images/I/519glA5egbL.jpg)
![SL728 28-Inch Lock-End Garage Door Extension Spring (.177" #7 Wire) - Image 3](https://m.media-amazon.com/images/I/41ejjvm-FXL.jpg)
![SL728 28-Inch Lock-End Garage Door Extension Spring (.177" #7 Wire) - Image 4](https://m.media-amazon.com/images/I/61oJPTEyWfL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Was really easy to replace. Not even 10 minutes and I was done.
*by J***. on October 4, 2024*

Easy to install and was a prefect fit in place of the old spring.

### ⭐⭐⭐⭐⭐ Great packaging and exactly what I was looking for.
*by R***Z on September 19, 2021*

Product was well packaged and the quality was neatFor old wood garage door

### ⭐⭐⭐⭐⭐ Works perfect, could not buy locally
*by L***I on December 27, 2017*

Worked perfect for the 1970's era secondary door I have at the back of the garage. Home Depot, at least by me, does not even carry this type of spring anymore. Took only a few minutes to change but I had to hang on it to get the hook engaged, it was a bit shorter than my old spring.

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**Shop now:** [https://www.desertcart.sn/products/25404209-sl728-28-inch-lock-end-garage-door-extension-spring-177](https://www.desertcart.sn/products/25404209-sl728-28-inch-lock-end-garage-door-extension-spring-177)

---

*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-05-31*