The soilless vertical barrel is meant to be a 3D-NFT solution providing components to set up 2″/5cm vertical soilless grow spaces using liquid fertigation. You can use natural sunlight much better compared to other systems like racks and have variability in terms of height, plant size and crop type at the same time. Modularity and possible applications have been maxed.
Modular living wall system consisting of 3 very robust building blocks to help set up planted wall systems indoor and outdoor with different types of plants, substrates and irrigation variants from frequently irrigated and fully draining hydroculture to heavy soil based setups with separated water reservoir per module.
For smaller setups or when raised beds do not work or are simply not available the logical extension from the soilless vertical barrel was a version that you could also fill with a kind of substrate or one that you could even use for a hydroculture or filter for your grey water or aquaponics setup. Units can be moved using a rolling board.
For public spaces we created a much larger and extended version of the white substrate barrel. Materials have different properties, are still food grade and it provides more options to make it indestructible. It also requires more integration and internal space for automated irrigation etc.