Water tanks by Aqua Tanks, are polyethylene, plastic, water tanks made in New Zealand (NZ). 

With polyethylene tanks from 295 litres to 31,000 litres, we offer the largest range of water storage tanks in New Zealand. Aquatanks or Aqua Fill Tanks manufactured by Allied Plastics Ltd (later changed to Galloway International Ltd) were the pioneers of the large polyethylene water tanks in Australasia about two years prior to any other manufacturer of large water tanks. With over 25 years manufacturing large water tanks we have achieved a reputation for the best.  Our first was the 20,000L tank, followed by  the introduction of the 25,000L and 31,000L water tanks. Our range includes underground tanks, slimline water tanks, retention and detention storm water water tanks, export water tanks, portable water tanks and pre-tank filters and accessories. Aqua Tanks can also be used for molasses, colostrum and chemical storage.

Friendly Service

Our friendly tank experts at Aqua Tanks are waiting to assist you in choosing the best water tank for water storage for your home or business. Contact us now!


Your Aqua Tank or Aqua Chemical Tank will be shipped direct from our tank factory and tank warehouse to your door or gate anywhere in the North Island using our experienced truck drivers. Free delivery in North Island exclusing Waiheke and other islands for our four large tanks.

Aqua Tanks - Buy with Confidence

We are the highest accredited polyethylene water tank manufacturer in New Zealand giving you peace of mind when purchasing an Aqua Tank. These certifications mean that all our processes, from tank design and manufacturing through to raw materials and finished products are certified to meet the highest design and manufacturing standards. We also offer a fully transferable 10 year warranty on all above ground tanks.

All our chemical tanks are EPA certified and approved, and underground tanks are independently certified by Professional Engineering Consultants.

Our aim is simple - to provide quality products and services to satisfied customers.


5 reasons to buy an Aqua Tank

Price: All our Polyethylene water, chemical, and underground, retention and detention tanks are exceptionally well priced, and with independent certifications

Size: We have the most extensive range of tanks ideal for customers who are looking for a specific tank capacity.

Design: The additional strength has been moulded into the tank through a combination of ribbing and domed construction. FEA tested and independently certified by Professional Engineering Consultants.

Availability: Our full range of tanks from 295L to 31,000L are available through our New Zealand-wide dealer network

Accredited: Galloway International Ltd is certified to AS/NZS4766 standards and EPA Code of Practice HSNOCOP 61 for the sale of chemical tanks.

About Galloway International Ltd

New Zealand-made Aqua Tanks are a division of Galloway International - a 100% New Zealand owned and operated company, an internationally recognised company known as a leader in the concept, design, mould fabrication, and manufacture of polyethylene products and systems.

Aqua Tanks is a registered trademark.

Other Galloway Divisions:

Galloway Aquatics & Recreation Galloway Custom Moulding Galloway International Galloway Kids Playgrounds Mac Boats