---
product_id: 2164741
title: "Black Fireproof and Waterproof Safe, File Folder and Document Box with Key Lock, Ex. 14.3 x 15.5 x 13.5 inches, HD4100"
brand: "sentrysafe"
price: "₨12833"
currency: SCR
in_stock: true
reviews_count: 8
category: "Sentry Safe"
url: https://www.desertcart.sc/products/2164741-black-fireproof-and-waterproof-safe-file-folder-and-document-box
store_origin: SC
region: Seychelles
---

# ETL Verified 72hr waterproof up to 8in Secure key lock with 2 flat keys UL Classified 1550°F/30min fireproof Black Fireproof and Waterproof Safe, File Folder and Document Box with Key Lock, Ex. 14.3 x 15.5 x 13.5 inches, HD4100

**Brand:** sentrysafe
**Price:** ₨12833
**Availability:** ✅ In Stock

## Summary

> 🔥💧 Lock in peace of mind, unlock your future security 🔐

## Quick Answers

- **What is this?** Black Fireproof and Waterproof Safe, File Folder and Document Box with Key Lock, Ex. 14.3 x 15.5 x 13.5 inches, HD4100 by sentrysafe
- **How much does it cost?** ₨12833 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/2164741-black-fireproof-and-waterproof-safe-file-folder-and-document-box)

## Best For

- sentrysafe enthusiasts

## Why This Product

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

## Key Features

- • **Organized Document Storage:** Built-in straps keep passports, birth certificates, and social security cards neatly secured and accessible.
- • **Compact Yet Spacious Design:** Perfectly sized at 14.3 x 15.5 x 13.5 inches to fit standard file folders without hogging space.
- • **Flood-Ready Waterproof Seal:** ETL verified to protect contents underwater for 72 hours up to 8 inches deep—because disasters don’t wait.
- • **Precision Key Lock Security:** Flat key lock prevents accidental openings during fire, ensuring your valuables stay put.
- • **Fortress-Level Fire Protection:** Endures extreme 1550°F heat for 30 minutes, keeping your irreplaceable documents safe.

## Overview

The SentrySafe Black Fireproof and Waterproof Safe (HD4100) is a compact, UL-classified fireproof safe that withstands 1550°F for 30 minutes and ETL-verified waterproof for 72 hours submerged up to 8 inches. Featuring a secure flat key lock and built-in document straps, it offers professional-grade protection for important documents and valuables in a sleek black steel design, ideal for home or office use.

## Description

Introducing the SentrySafe Black Fireproof and Waterproof Safe, a premium solution for safeguarding your most valuable possessions. This expertly designed safe box is perfect for those who prioritize security and peace of mind. With exterior dimensions of 14.x 15.x 13.inches, this compact yet robust safe is ideal for home use, providing ample space to store important documents, cash, and other valuables. The SentrySafe HD is not just a safe, it’s a fortress for your essentials, offering unparalleled protection against fire and water damage. Whether you’re looking for a fireproof document box or a reliable lock box for your money, this safe is engineered to meet all your security needs. Crafted with advanced fireproof and waterproof technology, the SentrySafe HD ensures that your documents and valuables remain intact even in the face of disaster. This fireproof safe can withstand temperatures up to 1550°F for up to 30 minutes, making it a reliable fireproof document safe for your home. Additionally, its waterproof seal keeps your items dry, even when submerged in water, making it an ideal choice for those seeking a home safe that is both fireproof and waterproof. The safes key lock mechanism provides an added layer of security, ensuring that only you have access to your treasured belongings. This versatile safe box is designed to protect what matters most. The SentrySafe HD is more than just a small safe, it’s a comprehensive security solution for your home. Its sleek black design complements any decor, while its durable construction guarantees long-lasting protection. Perfect for storing important documents, jewelry, and other valuables, this fireproof and waterproof safe is a must-have for anyone looking to secure their possessions against unforeseen events. With its compact size, it fits seamlessly into any space, making it an ideal choice for those in need of small safes for home use. Invest in the SentrySafe Black Fireproof and Waterproof Safe today and experience the ultimate in security and peace of mind.

Review: Great quality and use - This is really great to keep all my important documents in and it’s not too big so it doesn’t take up much space.
Review: Fantastic customer support - The customer service at SentrySafe/Masterlock is incredible. I had a small issue with my safe, and they made the situation right. I absolutely recommend this product, or another from the Masterlock/SentrySafe product line, because of their response to my issue alone. The safe is alright. It's nothing to write home about, and that is to be expected at under $100. It is the exact width of a "normal" manila folder, and it would be nice if it was just *slightly* wider. I would like if the lid had some sort of resistance to prevent it from being slammed. I don't have any major issues with it and I don't feel as if I'm going to break anything unless there is a manufacturing defect or I mishandle it. The handle does flex a little if you try to open the safe while it is locked, but it fine with normal use. The key isn't reinforced and will bend if you push on it the wrong way. The gasket might fall off and need to be put back into position before shutting the lid again. Those issues don't worry me now that I've dealt with their customer service department. I contacted them for one of the issues I listed above and they fixed the problem quickly and completely. Fantastic customer support. Fantastic customer support.

## Features

- FIREPROOF: Safe is UL Classified to endure 1/2 hour at 1550°F and keep interior temperatures safe for irreplaceable documents, valuables, DVDs, and USBs
- WATERPROOF: Safe box is ETL Verified for 72 hours of protection in water up to 8 inches deep offering peace of mind in the event of a flood
- COLOR: The fireproof file box has a black exterior finish
- KEYLOCK: Fireproof safe contains a flat key that prevents the lid from opening due to fire, includes 2 keys
- DOCUMENT SAFE: Important document organizer features built-in straps for easy storage of passports, social security cards, and birth certificates

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SentrySafe |
| Capacity | 0.65 Cubic Feet |
| Color | black |
| Lock Type | Key |
| Material | Steel and Fire-Resistant Composites |
| Product Dimensions | 13.5"D x 15.5"W x 14.3"H |

## Product Details

- **Brand:** SentrySafe
- **Capacity:** 0.65 Cubic Feet
- **Color:** black
- **Included Components:** Privacy Key Lock, Sentrysafe Hd4100Cg Fire-Safe Waterproof File, Warranty
- **Item Weight:** 38.9 Pounds
- **Lock Type:** Key
- **Material:** Steel and Fire-Resistant Composites
- **Mounting Type:** Floor Mount
- **Product Dimensions:** 13.5"D x 15.5"W x 14.3"H
- **Special Feature:** Fireproof, Waterproof

## Images

![Black Fireproof and Waterproof Safe, File Folder and Document Box with Key Lock, Ex. 14.3 x 15.5 x 13.5 inches, HD4100 - Image 1](https://m.media-amazon.com/images/I/91kGgNniuyL.jpg)

## Available Options

This product comes in different **Pattern** options.

## Questions & Answers

**Q: I really need to know the cubic footage of this safe to compare to other ones.  Do you know?**
A: I measured the inside and found it to be:9 1/2" tall, by 8" deep, by 12" wideAdditionally, the recess in the lid is 2"tall by 8" deep, by 12" wide.All told, the cubic inches are 1104 and cubic footage would be 0.639You can stand a 3-ring binder upright or on it's side.

**Q: There does not seem to be any handles,but are there at least handholds for moving it?**
A: No handles, nothing to grab

**Q: Can this fit legal-paper sized documents?**
A: No, it isn't wide enough.  It only will fit regular size file folders (for 8.5 x 11" documents).

**Q: What is the cubic foot size of the SentrySafe HD4100CG?**
A: the opening is 8" x 12" wide, with a ridge that holds a hanging folder just off the bottom, about 9" hanging depth.  there is a little head room so the folder tabs will clear the top when closed.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great quality and use
*by A***A on November 29, 2025*

This is really great to keep all my important documents in and it’s not too big so it doesn’t take up much space.

### ⭐⭐⭐⭐⭐ Fantastic customer support
*by A***X on August 1, 2025*

The customer service at SentrySafe/Masterlock is incredible. I had a small issue with my safe, and they made the situation right. I absolutely recommend this product, or another from the Masterlock/SentrySafe product line, because of their response to my issue alone. The safe is alright. It's nothing to write home about, and that is to be expected at under $100. It is the exact width of a "normal" manila folder, and it would be nice if it was just *slightly* wider. I would like if the lid had some sort of resistance to prevent it from being slammed. I don't have any major issues with it and I don't feel as if I'm going to break anything unless there is a manufacturing defect or I mishandle it. The handle does flex a little if you try to open the safe while it is locked, but it fine with normal use. The key isn't reinforced and will bend if you push on it the wrong way. The gasket might fall off and need to be put back into position before shutting the lid again. Those issues don't worry me now that I've dealt with their customer service department. I contacted them for one of the issues I listed above and they fixed the problem quickly and completely. Fantastic customer support. Fantastic customer support.

### ⭐⭐⭐⭐⭐ After several months, the seal on top came off. Very heavy.
*by M***S on January 6, 2026*

After several months, I open to put something in and the rubber seal came off. Looking for a way to put it back. Does not seem to be glued. Heavy !

## Frequently Bought Together

- SentrySafe Black Fireproof and Waterproof Safe, File Folder and Document Box with Key Lock, Ex. 14.3 x 15.5 x 13.5 inches, HD4100
- Pendaflex Hanging File Folders, Letter Size, Assorted Colors, 1/5-Cut Adjustable Tabs, 25 Per Box (81663)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-24*