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Metal tank, Pioneer tank, Galvanized Steel, corrugated metal, best price, low prices, rainwater harvesting, quality | #caixa d água tubular

Metal tank, Pioneer tank, Galvanized Steel, corrugated metal, best price, low prices, rainwater harvesting, quality

Metal tank, Pioneer tank, Galvanized Steel, corrugated metal, best price, low prices, rainwater harvesting, quality

This implies that they don't allow passage of sunlight and are therefore a great choice to minimise algal progress on the tank partitions.