Building? How do you plan to manage your waste water? Devans customised options ensure the right solution.Demand a Devan. Demand the Best.Click through to our website and download our catalogue now...Devan Septic Tanks and Wastewater Systems are designed and manufactured for New Zealand conditions. The modular, and scalable nature of our Septic Tanks and Wastewater Systems enables flexible installation options.Septic Tank Features? Capacity range from 2100L - 7200L ? Larger custom commercial tanks available ? Lightweight for easy transportation and installation ? Adjustable riser and easily accessible manhole ? 22mm lifting eyes allows an easy fit for certified shackles ? World leading rotationally moulded design using specifically formulated below-ground material for increased strengthOur Promise... ? Compliant with AS/NZS1548.1:2008 Septic Tank Standard ? Structurally designed and FEA tested ? 15 Year WarrentyCall Devan today and get quotes on the best options that suit your needs.