100% NZ Custom Made Tanks

marine tanks · water tanks · fuel tanks · waste tanks

Hercules Tanks are made from polypropylene - a food grade plastic material which will not taint fresh water and will not allow odour absorption, making it ideal for sewage tanks.

Hercules Tanks, United States Patent No. 9,359,133, are constructed with wrap-round corners and edges, giving the tanks their unique strength and are baffled clear of the bottom allowing for efficient drainage.

We offer a complete design, construction and fitting service, including:

  • Design and construct tanks to fit any area and fully utilise space
  • Fitting and plumbing of tanks
  • Slide valves and hose for dumping


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Our Diesel & Petrol Fuel Tanks are
CE Certified
and built to ISO 21487

View our CE Certificate