UNIVERSAL. ECONOMIC. SOLID. Concrete backfill blocks are used “when you want to bring back earth or other surface material to make a levee or to fill a cavity” – we even pulled out a dictionary definition for you. And, when they are as beautiful as ours, the Embankment concrete blocks can also be used to create low walls that have a lot of style. The Remblai block, formerly called the “Uni Block” at Patio Drummond, has proven itself over the years and remains the preferred choice of DIY enthusiasts and contractors. THE BACKFILL WALL IS PERFECT FOR: -Backfill -Wall for sloping land -Wall to enlarge a living area -Courtyard descent wall -Decorative wall