self-inflating sandbag flood barrier water gate

Product Description of the Sandless Flood Sandbags   When using the alternative sandbags, open the vacuum bag and immerse it in water nearby or directly pour water into the flood control bag. After about 3-5 minutes, the bag can expand 80-100 times (about 18kg), and then move it to the required location for flood control interception.   When not in use, the flood control bag should be placed indoors in a dry place for backup. It can be used at any time during rainy or typhoon seasons to prevent flooding and absorb water.   Product Features of the sandless flood control sandbag   Item Self-inflated Flood Bag Material  non-woven fabric, inside iwth high quality sap Model DP400 self-inflated sandbag Size 400mm (L)X600mm(W)x150mm(H) Weight 0.27Kg±5% before absorbing water, 18Kg±5% after absorbing water Inflating time 3 to 4 minutes Appliciation To embank rivers or lakes to prevent flood …