Minnow™
Water-activated flood bag
Lightweight alternative to traditional sandbags. The bag contains a superabsorbent polymer that expands upon contact with fresh water and forms a heavy, stackable barrier.
Activation
3 to 4 minutes
Activated weight
39 to 44 lb
Reusable
No
Where to use Minnow™?
- Doors
- Garages
- Residential driveways
- Loading docks
- Sewer grates
- Equipment
- Small dikes
- Spills
- Perimeter protection
In 4 steps
How it works
The dry bag is placed in or soaked with fresh water. The polymer inside absorbs the water, and the bag reaches its full size in approximately 3 to 4 minutes. Once expanded, its weight helps slow, contain or redirect water.
- 01 Place
- 02 Activate
- 03 Inflate
- 04 Stack
Technical specifications
Everything you need to know about
Minnow™
Dimensions and performance may vary depending on the configuration, custom dimensions, and project requirements.
| Specification | Details |
|---|---|
| System type | Freshwater-activated flood bag |
| Models / formats | MW1: 23.62 × 15.75 × 4.72 in.; 9.6 oz dry MW2 with handles: 15.75 × 14.17 × 4.72 in.; 11.6 oz dry |
| Primary material | Non-woven polypropylene exterior; 100% sodium polyacrylate interior |
| Structure / design | Superabsorbent polymer; absorbs approximately 6 gallons of water; 39 to 44 lb once activated |
| Product height | Stackable up to approximately 3 ft |
| Recommended protection height | Depending on the number of bags stacked |
| Deployment time | Fresh water activation in approximately 3 to 4 minutes |
| Fastening / connection | Bags placed and stacked |
| Compatible surfaces / supports | Does not activate in salt water |
| Configurations / accessories | MW1 or MW2 with handles |
| Reusable | No — disposable product |
| Maintenance / storage | Keep dry before use; compact and lightweight for easy transport. |
| Warranty | 2 years |






