5 % discount on the price of your tank. Offer valid from 1 May 2024 to 30 June 2024

📌 Please note that the 5% discount is applicable to the tank price only and does not apply to installation, transport, or fittings.

Oasis Tanks PTY LTD

A subsidiary of Rainbow Reservoirs PTY LTD, trusted manufacturer and installer worldwide of premium quality water storage tanks (since 2003).

Oasis Water Tanks

Quality Products

The Oasis Tanks brand is synonymous with quality products, exceptional service and the outstanding reputation for which the Rainbow Reservoirs Pty Ltd Group is renowned.

Decades of Experience

Oasis Tanks products are the culmination of decades of experience, expertise and continual improvement in the manufacture of tried-and-tested, sectional steel water tanks.


Each Aluzinc steel water storage tank is pre-fabricated in our factory. Our cutting edge, hi-tech machines and equipment de-coil, corrugate, form, profile, curve and precision-punch each individual sheet, ensuring easy, flawless installation in the field.

Durable and Reliable

We build Oasis Water Tanks that are durable and reliable, ensuring your peace of mind in affordable water storage for years to come.