The slot block barrier is the only water filled barrier to hold a standard fencing panel to increase site safety, virtually eliminate potential trip hazards and give added stability to fence panels. Independently tested my MIRA testing, the Slot Block Barrier will save time and money with the constant re-erection of site fencing and will give added visibility and corporate identity on ‘high profile’ sites. Weighs 14kg when empty and 320kg when full (per 2 units, 1 panel)