Seahorse SE331 Small Protective Case with Foam
Made in USA refers to a product that is virtually completely made in the United States of America. Any components not produced in the United States is negligible.
A Lifetime Warranty refers to a guarantee that the case is fully warranted against defects in materials and craftsmanship for the life of the case to the original owner. If your case breaks, we will supply replacement parts, repair the case, or replace your case for as long as you own it. Some conditions apply, please see individual manufacturer’s warranties.
Satisfaction Guaranteed is a promise that we ensure our customers are satisfied with the quality of the products they purchase from us and that they are free from any defects in materials or workmanship. We do our absolute best to be sure everyone gets satisfactory service and support.
Waterproof means that a case is completely resistant to water and will not allow water to pass through it under specific conditions. Waterproof cases are designed to remain unaffected by water exposure, even when submerged, typically for a certain depth and duration as defined by standards like the IP (Ingress Protection) rating system.
Customizable Foam Interior refers to pre-scored, perforated polyurethane foam that is perfect for creating your own cutouts for items without tools and without the need for a custom diecut. There are different terminologies for it including pick n pluck foam, diced foam, and cubed foam.Seahorse SE331F Small Waterproof Case with Accuform Pick N Pluck Foam Interior. Hard protective case offers protection and secure storage for your equipment. Customizable pre-scored high-density foam provides a snug fit for individual equipment. Includes egg-crate foam in the lid and shock absorbing foam bottom layer.
- Accuform Pick N Pluck Foam Interior
- Buoyancy: 11 lb
- Weight Capacity: 30 lb
- Soft Touch Large Carry Handle
- Dual QuickSnap Latches
- Molded-In Padlock Holes
- Accepts TSA and Most Standard Padlocks
- Automatic Pressure Purge System
- Optional Keyed Locking Latches
- Meets ATA and Military Standards
- Waterproof and Dust Proof
- Crushproof, Impact Resistant, Rust Proof
- Made of Ultra High Impact Copolymer
- Injection Molded
- O-Ring Seal
- MIL-STD 810F/IP67/ATA 300/TSA Compliant
- Lifetime Warranty
- USA Made
Interior Dimensions: 10.5 x 7.6 x 4.2 in.
Exterior Dimensions: 12.25 x 10.01 x 5.18 in.
Weight: 2.75 Lbs.
Wheels: No Wheels
Seahorse 331 Small Waterproof Protective Case with Accuform Pick N Pluck Foam Interior
The #1 Protective Case Trusted by Experts – The Seahorse 331F builds upon the success of our small-sized 300 protective hard case, and comes equipped with signature TwistLock Latches. The solid, polypropylene construction is precision designed and tested to last. You will always have valuable tech, supplies, or firearms that require protection wherever you go. Perfect for recreational water activities like boating, yachting, or sailing – a Seahorse case ensures gear stays dry, secure, and protected.
Waterproof, Crushproof, Adventure-Proof – Virtually indestructible, it’s built to withstand the elements. Rigorously tested to be rustproof and IP67 Waterproof, this tough case is also dustproof and impact resistant.
Flip Latch Pressure Equalization – Built into the SE331s TwistLock Latches, is our Flip Latch Pressure Equalization System which automatically equalizes pressure upon opening. QuickSnap Latches are designed for consistent o-ring seal, creating IP67 waterproof security. With a molded comfort grip handle, no detail was overlooked with the Seahorse 331.
Tough Enough for TSA – Easily meet TSA requirements with this TSA Approved, ATA-300 rated case. Securely lock your case with TSA approved locks using the three integrated eyelets. Metal Keyed Locks upgrade is also available.
The Ultimate Protective Hard Case – Made to store and protect virtually anything, the SE331 is ideal for the secure storage for everything from everyday tech like phones or cameras, to pistols and ammo, test equipment, and even compact drones. Uses are endless and these cases are used as emergency kits or dry boxes on boats, to secure medication or supplies, and to protect speciality equipment.
USA Made / Lifetime Guarantee – Seahorse stands on the integrity and quality of their full line of cases and manufactures EVERY case in the United States. Providing a lifetime guarantee against manufacturing defects is standard operating procedures.
The Accuform Foam is a customizable block of vertically pre-scored high-density Pick N Pluck foam that is pre-scored to provide easy removal of blocks of foam to create a custom snug fit for your valuables. This will protect your stored equipment from the abuse of even your roughest adventure. Includes a convolute foam lid and an Accuform Pick N Pluck Foam base. Also known as cubed foam or diced foam.
- Interior: Accuform Pick N Pluck Foam
- Buoyancy: 11 lb
- Weight Capacity: 30 lb
- Secure Storage for Valuable Gear; Great Dry Box for Water Activities
- Crushproof, Impact Resistant, Rust Proof, Adventure-Proof
- Ideal for Valuable Tech, Cameras, Pistols, Ammo, Microphones, Phones etc.
- QuickSnap Latches with Automatic Pressure Equalization System
- Integrated Eyelets and Easy Carry Handle
- Metal Keyed Lock Upgrade Available
- ATA 300 / TSA Compliant
- Made to MIL-STD 810F Standards
- IP67 Waterproof
- Made of Ultra High Impact Polypropylene
- Meets or Exceeds MIL-STD810F 512.4 and IP67 Certification
- Proudly Made in the USA
| SKU | SE331F |
|---|---|
| Brand | Seahorse Cases |
| Interior Options | Pick and Pluck Foam |
| Interior (LxWxH) | 10.5 x 7.6 x 4.2 in. |
| Exterior (LxWxH) | 12.25 x 10.01 x 5.18 in. |
| Weight | 2.75 Lbs. |
| Color | Black |
| Wheels | No Wheels |
| Handle | Molded |
| Latches | Double-Throw Latches |
| Lockable | Pad-Lockable |
| Body Material | Polypropylene |
| Manufacturing Process | Injection Molded |
| Water Resistance | Waterproof |
| Rating | ATA Rated |
| Certifications | IP67, MIL-STD 810F 512.4 |
| Transporting and Shipping Options |  Small Package Service refers to cases that can ship via UPS, Fedex or USPS and would be charged a standard rate based on the weight. Cases must weigh less than 150 lbs. and meet certain dimensional requirements. Always check the carrier’s small package policy for exact limits. Checked Baggage refers to cases that can be checked in on the airlines that are under 50 lbs. and 62 in. overall or less and would be considered standard size bags that would not incur an oversize fee. Overall dimensions of the case are determined by adding the length, width and height together. Always check your airline’s specific policy, as size and weight limits can vary by carrier and route. |
Empty
SE331 – No Foam Interior.
Accuform Pick N Pluck Foam
SE331F – Accuform Foam is a customizable block of vertically pre-scored high-density Pick N Pluck foam that is pre-scored to provide easy removal of blocks of foam to create a custom snug fit for your valuables. This will protect your stored equipment from the abuse of even your roughest adventure. Also known as cubed or diced foam.
Seahorse 331 Dimensional DrawingSEAHORSE CASES LIFETIME WARRANTY
Seahorse Cases are guaranteed against defects in materials and craftsmanship for the life of the case. Cases that have been modified are not covered under this guarantee. The case is guaranteed to be watertight when properly closed with an undamaged O-ring in place. Any liability, either expressed or implied, is limited to replacement of the case and not its contents. This guarantee is void if the Seahorse Case has seen excessive abuse or blatant neglect beyond normal and sensible wear and tear. To inquire about a replacements or more information, please contact our Customer Service department at (626) 339-6673
WHAT OUR CUSTOMERS ARE SAYING:
"Exceptional Quality and Service"
We've been sourcing hard cases and multi-laptop transport cases for our IT deployment teams, and this company has exceeded expectations. The quality is unmatched—durable, secure, and clearly made for professionals. Their customer service team is responsive, knowledgeable, and genuinely committed to helping. Highly recommend for any company needing a quality shipping case.
- Procurement Manager, Federal Contractor
"The Only Case Supplier We Trust"
We use their cases for secure field deployments, and they hold up to the toughest environments. Our reps always get quick answers and real solutions from their support team. Great partner for anyone needing rugged, high-quality shipping and transport options.
- IT Director, Defense Contractor
"Built for Professionals - Built to Last"
We ordered multiple cases to secure sensitive equipment and laptops. Not only did they arrive quickly, but the quality was outstanding. Custom foam inserts were a game-changer for our workflow. Cases came with a lifetime warranty. And any time we’ve had a question, their support team handled it fast and professionally.
- Facilities Manager, National Utility Company
"Top-Tier Cases and Even Better Support"
We needed laptop transport cases that could meet strict government transport standards. These cases were spot-on—secure, organized, and travel-ready. I was especially impressed by how proactive and helpful the customer support was. Their team helped us customize our order, and the process was smooth from start to finish. A great experience all around. Our organization will absolutely reorder.
- Logistics Coordinator, Municipal IT Tech Department
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