---
product_id: 525897726
title: "Fire Retardant Large Strong Box, Dual Combination and Key Lock Steel Security Chest Fits Legal Documents & More Flat, Fire Resistant to Safeguard Vitals, 0.43 Cubic Ft, 18\" x 10\" x 3.5\" Interior"
brand: "suber"
price: "R3548"
currency: ZAR
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.za/products/525897726-fire-retardant-large-strong-box-dual-combination-and-key-lock
store_origin: ZA
region: South Africa
---

# 0.43 cu ft flat storage Dual key & combo lock Fire tested 1550°F/15min Fire Retardant Large Strong Box, Dual Combination and Key Lock Steel Security Chest Fits Legal Documents & More Flat, Fire Resistant to Safeguard Vitals, 0.43 Cubic Ft, 18" x 10" x 3.5" Interior

**Brand:** suber
**Price:** R3548
**Availability:** ✅ In Stock

## Summary

> 🔥 Lock down your legacy with fireproof confidence! 🔒

## Quick Answers

- **What is this?** Fire Retardant Large Strong Box, Dual Combination and Key Lock Steel Security Chest Fits Legal Documents & More Flat, Fire Resistant to Safeguard Vitals, 0.43 Cubic Ft, 18" x 10" x 3.5" Interior by suber
- **How much does it cost?** R3548 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/525897726-fire-retardant-large-strong-box-dual-combination-and-key-lock)

## Best For

- suber enthusiasts

## Why This Product

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

## Key Features

- • **Durable & Portable:** Powder-coated stainless steel with dual handles for rugged use and easy transport.
- • **Fireproof Fortress:** Lab-tested to withstand 1550°F for 15 minutes, protecting your most vital documents.
- • **Spacious Flat Storage:** Generous 0.43 cubic feet interior fits legal documents, passports, and valuables with ease.
- • **Sleek Professional Design:** Matte black finish complements any office or home setup while safeguarding essentials.
- • **Unbeatable Dual Lock Security:** Choose key, combination, or both for ultimate peace of mind.

## Overview

This Suber fire retardant security chest combines a patented dual locking system—key and 3-digit combination—with a durable powder-coated stainless steel build. Designed to protect flat legal documents and valuables, it offers 0.43 cubic feet of interior space and has been lab-tested to endure 1550°F for 15 minutes. Portable with dual handles and finished in sleek black, it’s the professional’s choice for safeguarding critical assets at home or office.

## Description

Fire Retardant Large Strong Box, Dual Combination and Key Lock Steel Security Chest Fits Legal Documents & More Flat, Fire Resistant to Safeguard Vitals, 0.43 Cubic Ft, 18" x 10" x 3.5" Interior

## Features

- Patented Design deatures a standard key lock with two keys included along with a three digit combination lock, giving you the option of locking it by key or combination, or both. The combination lock is defaulted to 000 and can be set to the three digits of your choice.
- Durable, Powder Coated Stainless Steel Security Chest Strong Box Extra Large for Flat Storage of Legal and other Longer Page Documents, Cash and Valuables. Featuring two handles - one on each side to allow sturdy carrying with the box full of contents.
- Double walls insulated with fire retardant. Lab tested with documents inside at 1550 degrees fahrenheit for 15 minutes.
- Exterior Dimensions are 19.25" length (20.375" with the handles) x 10.75" width x 4"height. Interior dimensions are 18" x 10" x 3.5". 0.43 CBF of internal space.
- Safeguard important documents such as passports, cash,firearms, vital records, jewelry, medicine and any other valuables. Easily transportable and perfect for use in an office or home.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Suber |
| Product Dimensions | 10.75"D x 20.38"W x 4"H |
| Lock Type | Key, Combination |
| Color | Black |
| Capacity | 0.43 Cubic Feet |
| Material | Stainless Steel |
| Special Feature | Fire Resistant |
| Mounting Type | Freestanding, Tabletop |
| Included Components | Keys |
| Item Weight | 8 Pounds |
| Water Resistance Level | Not Water Resistant |
| UPC | 046149809241 |
| Manufacturer | Sueberr |
| Part Number | FBL-KCBLK |
| Item Weight | 8 pounds |
| Item model number | FBL-KCBLK |
| Size | Large |
| Style | Dual Lock |
| Finish | Coated |
| Shape | Rectangular |
| Item Package Quantity | 1 |
| Special Features | Fire Resistant |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Suber
- **Product Dimensions:** 10.75"D x 20.38"W x 4"H
- **Lock Type:** Key, Combination
- **Color:** Black
- **Capacity:** 0.43 Cubic Feet
- **Material:** Stainless Steel
- **Special Feature:** Fire Resistant
- **Mounting Type:** Freestanding, Tabletop
- **Included Components:** Keys
- **Item Weight:** 8 Pounds

## Images

![Fire Retardant Large Strong Box, Dual Combination and Key Lock Steel Security Chest Fits Legal Documents & More Flat, Fire Resistant to Safeguard Vitals, 0.43 Cubic Ft, 18" x 10" x 3.5" Interior - Image 1](https://m.media-amazon.com/images/I/61r-CgSk-ZL.jpg)
![Fire Retardant Large Strong Box, Dual Combination and Key Lock Steel Security Chest Fits Legal Documents & More Flat, Fire Resistant to Safeguard Vitals, 0.43 Cubic Ft, 18" x 10" x 3.5" Interior - Image 2](https://m.media-amazon.com/images/I/511FZVHk0aL.jpg)
![Fire Retardant Large Strong Box, Dual Combination and Key Lock Steel Security Chest Fits Legal Documents & More Flat, Fire Resistant to Safeguard Vitals, 0.43 Cubic Ft, 18" x 10" x 3.5" Interior - Image 3](https://m.media-amazon.com/images/I/61sV5neOEOL.jpg)
![Fire Retardant Large Strong Box, Dual Combination and Key Lock Steel Security Chest Fits Legal Documents & More Flat, Fire Resistant to Safeguard Vitals, 0.43 Cubic Ft, 18" x 10" x 3.5" Interior - Image 4](https://m.media-amazon.com/images/I/71ngOt1EG7L.jpg)
![Fire Retardant Large Strong Box, Dual Combination and Key Lock Steel Security Chest Fits Legal Documents & More Flat, Fire Resistant to Safeguard Vitals, 0.43 Cubic Ft, 18" x 10" x 3.5" Interior - Image 5](https://m.media-amazon.com/images/I/61C2KRsMLaL.jpg)

## Questions & Answers

**Q: Is there a way to open the box if you forgot the combination**
A: 1. You’ve tattooed the combination on your body. 
2. You have handy a short handle sledge hammer to remove the lock.

**Q: Do you need both keys to unlock?**
A: No. Two identical keys are provided but there is only one keyhole on the box.

**Q: Where is it manufactured ?**
A: I am not sure but I received item fast and satisfied. When I looked over website I think new Mexico but not positive.  Hope this helped.

**Q: Does this product contain asbestos?**
A: No, the fire retardant material within the steel walls is an aluminosilicate fiber cloth, usually called ceramic fiber. This box does not contain asbestos.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product just what I need.
*by E***K on June 4, 2025*

Great product just what I need.

### ⭐⭐⭐⭐⭐ So far so good
*by A***1 on May 11, 2025*

This is the perfect burn box to store your documents. It is built well and appears sturdy for the price. The lock is very secured.

### ⭐⭐⭐⭐⭐ Best Lock Box I Found
*by S***N on February 28, 2025*

Super sturdy, great size and easy to use. Love the minimal aesthetic and no branding.

## Frequently Bought Together

- Fire Retardant Large Strong Box, Dual Combination and Key Lock Steel Security Chest Fits Legal Documents & More Flat, Fire Resistant to Safeguard Vitals, 0.43 Cubic Ft, 18" x 10" x 3.5" Interior
- ROLOWAY Small Fireproof Bag (5 x 8 inches), Non-itchy Fireproof Money Bag for Cash, Valuables, Passport, Currency & Keys (2-Pack)
- Fire Retardant Strong Box, Dual Combination and Key Lock Security Chest, Fire Resistant Steel Lock Box to Safeguard Vital Documents, Medicine, Money, 0.24 Cubic Feet, 12" x 10" x 3.5" Interior, Black

---

## 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.za/products/525897726-fire-retardant-large-strong-box-dual-combination-and-key-lock](https://www.desertcart.co.za/products/525897726-fire-retardant-large-strong-box-dual-combination-and-key-lock)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-16*