Water-Activated Flood Barrier Bags, 8 Pack, 3050x210mm

Flood barrier bags activate with water to build a fast, sandless barrier that helps block flooding at doors, basements, and garage entrances. This 8-pack uses a superabsorbent polymer gel core that expands in about 10 minutes, forming a tight seal under pressure without hauling sand. Reinforced stitching and high-density non-woven fabric support repeated handling for storm prep and emergency water control.

• Delivers rapid 3–4 in expansion to form a dependable water barrier for flood prevention


• Blocks water with superabsorbent gel that swells up to 58x its weight for strong sealing


• Deploys easily—place on the floor, add water, and let expand in about 10 minutes


• Resists tearing with reinforced edge stitching and durable non-woven outer fabric


• Fits doorways, garages, and basement thresholds for sandbag-free storm readiness

Keep these reusable water-activated flood bags on hand before heavy rain hits—quick placement and fast expansion help you control water where it enters most. Use them as a flexible barrier line across entry points, then remove and store once conditions improve. For performance, avoid use with salt water, lime, or calcium, which can interfere with the absorbent gel. Grab yours today and set up a practical flood defense kit for your home.

• Pack size: 8 pieces


• Material: High-density non-woven fabric; superabsorbent polymer gel sheet


• Dimensions (each): 3050 x 210 x 3 mm (10 x 0.7 x 0.01 ft)


• Max expanded height: 76.2–101.6 mm (3–4 in)


• Expansion time: approx. 10 minutes (water-activated)


• Water absorption capacity (each): 21.92 kg / 48.32 lb


• Weight before absorption (each): 0.66 kg / 1.46 lb


• Weight after absorption (each): 22.60 kg / 49.82 lb


• Net product weight (set): 5.20 kg / 11.46 lb