---
product_id: 47896112
title: "DSBA4 UL Certified Lockable A4 Fire & Waterproof Security Chest"
brand: "cathedral products"
price: "¥74015"
currency: JPY
in_stock: true
reviews_count: 13
category: "Cathedral Products"
url: https://www.desertcart.jp/products/47896112-dsba4-ul-certified-lockable-a4-fire-and-waterproof-security-chest
store_origin: JP
region: Japan
---

# 8h waterproof at 33cm depth Key lock with 2 spare keys 840°C fireproof for 30 min DSBA4 UL Certified Lockable A4 Fire & Waterproof Security Chest

**Brand:** cathedral products
**Price:** ¥74015
**Availability:** ✅ In Stock

## Summary

> 🔥💧🔐 Protect What Matters Most — Because Your Legacy Deserves a Fortress

## Quick Answers

- **What is this?** DSBA4 UL Certified Lockable A4 Fire & Waterproof Security Chest by cathedral products
- **How much does it cost?** ¥74015 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/47896112-dsba4-ul-certified-lockable-a4-fire-and-waterproof-security-chest)

## Best For

- cathedral products enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Heavy-duty 12.8kg concrete and plastic construction designed for long-lasting durability and peace of mind.
- • **Spacious & Practical:** Generous 7-litre capacity fits A4 documents comfortably, perfect for organizing your essential papers.
- • **Floodproof Confidence:** Independently tested waterproof seal guards your valuables for up to 8 hours underwater at 33cm depth.
- • **Secure Access Control:** Key lock system with two spare keys ensures only authorized hands can open your security chest.
- • **Fortress-grade Fire Protection:** Withstands blazing 840°C for 30 minutes to keep your documents intact when it matters most.

## Overview

The Cathedral Products DSBA4 is a robust, lockable security chest designed to protect A4 documents from fire up to 840°C for 30 minutes and water immersion for 8 hours at 33cm depth. Featuring a secure key lock with spare keys, a spacious 7-litre interior, and a durable 12.8kg concrete-plastic build, it offers professional-grade protection and peace of mind for your most important papers.

## Description

From the manufacturer Protects documents from fire in temperatures up to 840°C for 30 minutes Designed to withstand temperatures up to a scorching 840°C for 30 minutes, this sturdy box acts as a fortress, protecting your valuable papers from the ravages of fire. You can trust that even in the most extreme circumstances, your documents will remain unscathed and ready for use. Waterproof seal keeps content dry The waterproof seal on this box creates a barrier that keeps the content inside completely dry, even in the harshest of conditions. So whether you're dealing with rain, snow or floods, your most important documents and even heirlooms are kept protected and secure. Independently leak tested for up to 8 hours at 33cm water depth What sets the Cathedral Products fire & waterproof deed box apart from other document storage options is the fact that it has been independently leak tested for up to 8 hours at 33cm water depth. This means that even if the box were to be submerged in water for an extended period of time, the documents inside would remain dry and undamaged. Key lockable (spare keys provided) Even the strongest box won't be of much use if it can be easily opened by anyone. That's where the Cathedral Products fire & Waterproof deed box comes in. With a key lockable lid, and the supplied 2 spare keys, you can rest assured that only those with authorized access will be able to view or remove the contents of the box. Why settle for anything less when it comes to protecting what matters most? Protects documents from fire Waterproof seal Independently leak tested Key lockable Frequently Asked Questions Q: I've lost my key! Am I able to get a replacement? A: Yes! Replacement keys are available to purchase via our website Q: Should I regularly air my box, to prevent moisture build up? A: Our fire and waterproof box should be aired at least once a week. As the box is designed to be waterproof, the seal will also prevent moisture escaping, and it can build up in the box. We also recommend popping in a couple of silica gel pouches, to absorb moisture build up.

Review: Sturdy Heavy Case - Excellent sturdy case that hopefully I will not have to test its fireproof or waterproof properties, but will mention that it is extremely heavy for exactly those reasons.
Review: Excellent box to keep important documents safe and secure - This thing is an absolute beast. I wouldn't be surprised if it's bomb proof. As other users have said, it is very heavy but the handle makes it easier to move around and I think most grown men/women would be able to lift it without too much trouble. A4 paper fits in well but I wish it was a tiny bit bigger so all A4 papers could sit completely flat. With the way it is, A4 edges will curl ever so slightly up on the edges of the inside of the box. But if, like me, you only have a hand full of documents that you want to keep safely together in one place, this is a very good solution. I don't rate the lock much (reckon it could easily be picked by someone experienced in that) but it's good enough to stop kids, nosey guests etc having a peek. EDIT: Forgot to add, a fairly generous sized pouch of the silica stuff was included which is a bonus as you don't have to buy it separately or wait for your next pair of shoes.

## Features

- FIREPROOF: Protects documents from fire in temperatures up to 840°C for 30 minutes.
- WATERPROOF: Waterproof seal keeps contents dry, even during a flood - Independently leak tested for up to 8 hours at 33cm water depth
- SECURE: Key lockable with spare keys provided for added security
- SPACIOUS: Internal Measurements: H 9.4 x W 33.3 x D 21.6 cm, External Measurements: H 16.6 x W 40.7 x D 32 cm, Capacity: 7 litres
- DURABLE: Weighing 12.8kg, this box is built to last

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002ZG8KHW |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 60,535 in DIY & Tools ( See Top 100 in DIY & Tools ) 50 in Cabinet Safes |
| Colour | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (826) |
| Date First Available | 24 Nov. 2009 |
| Included Components | Key, Manual, Safe |
| Item Package Quantity | 1 |
| Item Weight | 12.8 kg |
| Item model number | DSBA4 |
| Manufacturer | Cathedral |
| Material | Concrete, Plastic |
| Part Number | DSBA4 |
| Pattern | Solid |
| Plug profile | Freestanding |
| Product Dimensions | 16.3 x 13.62 x 7.01 cm; 12.8 kg |
| Size | 13.6 x 16.3 x 7.0 cm |
| Special Features | Fireproof, Waterproof |

## Product Details

- **Brand:** Cathedral Products
- **Capacity:** 7 litres
- **Colour:** Black
- **Included components:** Key, Manual, Safe
- **Item weight:** 12.8 Kilograms
- **Lock type:** Key
- **Material:** Concrete, Plastic
- **Mounting type:** Freestanding
- **Product dimensions:** 13.6D x 16.3W x 7H centimetres
- **Special feature:** Fireproof, Waterproof

## Images

![DSBA4 UL Certified Lockable A4 Fire & Waterproof Security Chest - Image 1](https://m.media-amazon.com/images/I/81hHe1Wpu6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Sturdy Heavy Case
*by I***N on 29 October 2025*

Excellent sturdy case that hopefully I will not have to test its fireproof or waterproof properties, but will mention that it is extremely heavy for exactly those reasons.

### ⭐⭐⭐⭐⭐ Excellent box to keep important documents safe and secure
*by A***B on 22 February 2017*

This thing is an absolute beast. I wouldn't be surprised if it's bomb proof. As other users have said, it is very heavy but the handle makes it easier to move around and I think most grown men/women would be able to lift it without too much trouble. A4 paper fits in well but I wish it was a tiny bit bigger so all A4 papers could sit completely flat. With the way it is, A4 edges will curl ever so slightly up on the edges of the inside of the box. But if, like me, you only have a hand full of documents that you want to keep safely together in one place, this is a very good solution. I don't rate the lock much (reckon it could easily be picked by someone experienced in that) but it's good enough to stop kids, nosey guests etc having a peek. EDIT: Forgot to add, a fairly generous sized pouch of the silica stuff was included which is a bonus as you don't have to buy it separately or wait for your next pair of shoes.

### ⭐⭐⭐⭐ Great case but note it fits A4 pages fine but not the envelopes they come in!
*by M***A on 4 October 2023*

I have an older, similar but significantly larger case that easily fits A4 documents whilst they are within the envelopes they were sent in. (After opening them, I like to keep the documents in their original envelopes to keep them apart whilst filing them and make it easy to remove a given document / set of papers by picking the correct envelope). This case is smaller than my old one so, whilst A4 documents DO lie flat inside it nicely on their own, they do not quite lie flat if still in their containing envelope as the envelope is obviously slightly larger than A4 - which somewhat ruins my filing system of keeping given documents in their own envelopes! That said, it is a solidly built case and as smaller, it is easier to move around the room than my larger one. All in all, it gets 5 stars all round for quality as it is a great, solid and compact case but 1 star removed from overall total as it does not work for A4 pages if left in their envelopes as described above. (The description does however show the case's internal dimensions so I guess I bear responsibility for this as I should have measured the envelopes (rather than the A4 documents) when checking fit!). Bottom line is do your own measurements and if you just need to store A4 documents lying flat on their own (or smaller things), this is a fantastic case, exactly as their description and for a very accessible price so I recommend it but, if you want to store your documents in envelopes slightly larger than A4 (as required to fit A4 sheets in them), measure the envelopes themselves carefully and compare to the internal dimensions (you will probably find they will not quite lie flat!) or decide on your filing system first!).

## Frequently Bought Together

- Cathedral Products DSBA4 UL Certified Lockable A4 Fire & Waterproof Security Chest
- celloexpress 10g Silica Gel Pouches - Pack of 5 - Total Gel Weight 50g - Silica Gel in Tyvek Fabric Sachets (10g, 5)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-05-05*