SentrySafe HD4100 Fire-Resistant and Water-Resistant Box Safe with Key Lock, 0.65 cu. ft.
SentrySafe HD4100 Fire-Resistant and Water-Resistant Box Safe with Key Lock, 0.65 cu. ft.
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SentrySafe HD4100 Fire-Resistant and Water-Resistant Box Safe with Key Lock, 0.65 cu. ft.

1,718 ratings

Key item features

  • Fire Protection: Fire-resistant box is UL Classified to endure 1/2 hour at 1550F to protect irreplaceable documents, small valuables, DVDs, and USBs from fire.
  • Water Resistance: Waterproof box is ETL Verified for 72 hours of water submersion offering peace of mind in the event of a flood.
  • Secure Lock: Features a flat key lock to prevent the lid from opening in the event of a fire; includes two keys for added security.
  • In-Lid Storage: Allows in-lid storage of passports, social security cards, and birth certificates; accommodates letter-size hanging files and folders (sold separately).
  • Dimensions: Exterior dimensions: 14.3 in. H x 15.5 in. W x 13.5 in. D; Interior dimensions: 11.5 in. H x 12 in. W x 8.125 in. D; Capacity: 0.65 Cu. ft.; Weight: 38.85 Lbs.
  • Digital Media Protection: Protects tablets, phones, external hard drives, memory cards, USB drives, CDs, DVDs, and other electronic storage devices.
  • Organized Storage: In-lid organizer helps make small valuables like passports, extra keys, or media files readily available.
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Customer ratings & reviews

4.3 out of 5 stars
stars
1,718 ratings785 reviews
How item rating is calculated
  1. 5 stars67% (1,156)
  2. 4 stars16% (270)
  3. 3 stars6% (100)
  4. 2 stars3% (45)
  5. 1 star9% (147)

Reviews summary

Pros

  • : Has a suitable physical dimension.
  • : Offers good quality at a reasonable cost.
  • : The products maintain uniform construction across units.
  • : Offers protection against water and fire damage.
  • : The safe resists heat and water to shield documents.
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Showing 1-3 of 785 reviews

Feb 3, 2026
Reviewer name: Slingerland
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Great Product

The Sentry Fire and Water safe is a secure and well built item. It has a heavy weight construction, a positive and easy to use locking mechanism, and a storage well that allows hanging files for organized document placement. Overall, very pleased with the product and recommend the Sentry Fire and Water safe to anyone needing secure storage of valuables.

Review from sentrysafe.com
Helpful?5YKNWG9KHXMR34008332
Jun 19, 2026
Reviewer name: BRIGESS
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great Safe

I got this safe as a gift for my son to keep up with his important documents. I bought one years ago for myself so I was familiar with the brand %26 type of safe I needed to buy him. Excellent safe not small or too big just right size to store important documents that you don't want to get loss or stolen. I especially like that you can hang file folders inside to organize your items, this was a great plus for me. I definitely would buy it again.

Helpful?5YKNWG9KHXMR34008332
May 25, 2026
Reviewer name: anonymous
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

very nice safe that isn't too heavy. obviously haven't tested against fire, and hope I never will, but it's a great place to store documents in hanging folders. I even keep a spare hard drive in here in case one dies in any of my computers, and needs a quick replacement.

Helpful?5YKNWG9KHXMR34008332
Current price is $68.001.8 ¢/ea
Price when purchased online
  • Free shipping
  • Free 90-day returns
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