Water-Activated Sandbags
A 4-pack of fast-deploy sandless bags — no sand or shovels needed.
Free Australia-wide shipping
A compact 4-pack of water-activated sandbags for quick flood preparation around doorways, garages, shopfronts, and low-entry points. Each bag stores flat at just 270 g and swells to 18–22 kg within 2–3 minutes of contact with fresh water, forming an instant dam during heavy rain or rising surface water. Stack bags to build higher barriers. Need 8 bags? Order two packs.
Why this product
Key features
- Includes 4 water-activated sandbags per pack
- Activates in 2–3 minutes on contact with fresh water
- Swells to 18–22 kg per bag — no sand, shovels, or filling needed
- Super-absorbent sodium polyacrylate core forms an instant dam
- Stores flat at 270 g each; stack bags for higher protection
- UV-protected non-woven polypropylene shell for outdoor use
- Free Australia-wide shipping
Technical detail
Specifications
| Pack size | 4 sandbags |
| Pre-activated weight | 270 g per bag |
| Activated weight | 18–22 kg per bag |
| Activated size | 600 × 400 × 120 mm (L × D × H) |
| Activation time | 2–3 minutes (fresh water) |
| Shell material | Non-woven polypropylene with UV protection |
| Absorbent core | 100% sodium polyacrylate |
| Shipping | Free Australia-wide shipping |
Related guides
Learn where this flood barrier works best.
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