Floodgate Double Ventguard is a great product from the floodgate range. This stops water getting in, even the smallest bit of water can cause damage in your home or business. Water does not just enter through doors, so this product screws to the wall surrounding an airbrick.
When the risk is high for flooding it takes seconds to manually insert the quick release bungs into both the sides of the ventguards to make it watertight. An installation kit is included with this product.