Pillow tanks are available for a wide range of applications. Ideal for temporary and long term storage of various liquids, slurries, and gases, pillow tanks are available in a large range of standard sizes, with full customisation available.

Flexitank Australia is Australia’s premier pillow tank supplier, offering the largest pillow tank sizes anywhere in the southern hemisphere.

Available in a vast array of capacities and sizes, Flexitank pillow tanks are suitable for irrigational and potable water, various fuels, including ULP and diesel, chemicals, wastewater, effluents, and gases. Flexitank uses very specific materials that have also been developed for the short and long-term storage of potable food grade products, including wines and olive oils. With a wide range of materials available, ranging from basic PVC through to military bulletproof Polyurethane alloys, Flexitank’s extensive testing ensures the integrity of our pillow tanks is not compromised by the selected liquids.

With Flexitank pillow tanks being used by various industries, including mining, construction, pool renovation, and tank renovation, our flexible pillow tanks are also depended upon by various aid agencies, the military, and government sectors around the world.

What is a Pillow Tank?

Pillow tanks and bladder tanks are self-supporting, flexible containers that can be used to store all types of liquids. Pillow tanks are tough, portable, and easy to install. This makes them ideal for temporary storage use or where it is difficult or too costly to build a more permanent solution.

We offer a range of standard range of pillow tanks as outlined below.  Pillow tanks will fold down to 1/10th of their filled size, making them exceptionally friendly to the environment and suitable to be installed virtually anywhere.

Flexitank offer a range of 14 standardised pillow tank solutions that cover standard capacities from 1,200 litres (317 USG) to 460,000 litres (121,519USG)

Metric measurements:

Imperial measurements:

Note:  These sizes should be used as an indication only; sizes will be confirmed once the liquid and application are confirmed with Flexitank.



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Flexitank pillow tanks offer a range of features and benefits unrivalled by the traditional tank market:


Standard sizes from 1,200 litres (317 USG) – 460,000 litres (121,519USG)


Increased storage capacities that are able to be shipped at a fraction of the cost of hard plastic and steel tanks


Offer vast bulk storage in a single tank with minimal or no site preparation required


Reduced shipping and transportation costs

a packed pillow tank typically folds down to approx. 1/10th of its filled size, offering a very low cost of transport per litre

All join seams are externally capped prior to testing and all end close of welds high frequency welded and capped for maximum strength


Excellent UV and abrasive resistant materials, giving virtually no evaporation due to no air inside bladders at any stage


Proven manufacturing techniques give you peace of mind with regards to integrity of bladders


Full customisation service available


Flexitank pillow tanks can be easily manifolded together to create vast amounts of liquid storage in the form of flexible pillow tank farms


Reliable fabric options that have proven field usage


High Temperature Range (typically from -50° C/-58° F to 83° C/180° F);


Quality fittings 12mm (½”) through to 200mm (8”) tailored to suit your application


Every pillow tank is supplied standard with ground sheets, meaning additional protection to every pillow tank that is in service without the hidden expense


Ideal for portable and remote applications where access is restricted

Flexible pillow tanks are manufactured from a wide range of polymeric materials, and are often the best option for a variety of fluids suited to many varying applications.

Pillow tanks also provide the additional benefit that in many site applications, lengthy and expensive approvals to install pillow tanks is not required. Additionally, as they easily pack up, pillow tanks can be removed from any site with ease, reducing overhead costs and helping to adhere to strict EPA requirements in many fields.

Experts in manufacturing of pillow tanks, Flexitank generally work off a square design style to ensure maximum stability in all applications and the best volume to area ratio.

All pillow tanks need a flat, clear area to be correctly setup, and are each supplied with a groundsheet to assist with proper function during filling. For sensitive fluids, Flexitank recommend a suitable berm liner in case of emergency. The berm liner can be fabricated to exact sizes for the volume of the pillow tank.

Check out images of Flexitank pillow tanks:

For more information on pillow tanks, or to discuss any projects that you have in mind, please fill out the form below and our sales team will be in contact with you as soon as possible:

59,000 litre mud slurry pillow tank storage