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and shallow sources
Aquaculture and Industrial Use
Available as NK4-22 (2" outlet
• Free passage: clean water only
larger flow paths
Anti-Flood SMART AirBrick® - UK No.1 Anti-Flood Airbrick NK and shallow sourcesA single unprotected air brick can let hundreds of litres of water a minute into your property during a flood and most people never think to protect them. The Anti Flood SMART AirBrick is an engineered, self closing replacement for a standard clay air brick. In normal weather it ventilates your building exactly as an ordinary air brick would, keeping the void dry and free of damp. When flood water rises against the wall, a buoyant internal valve is
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