These four PolyProcessing SAFE-Tank® double-wall tank systems provide built-in secondary containment with an 8,700-gallon primary tank and 10,150-gallon outer tank, designed to prevent spills and extend service life. Previously used only for water storage at a California facility, each unit has been third-party hydrotested with no leaks found. With included ladders and durable construction, these tanks are ideal for industrial, municipal, or agricultural applications needing reliable, long-term fluid containment.