Enjoy the Benefits of New Generation Polytank Technology™

Duraplas is quite simply the ideal water tank.






  • Seamlesss manufacture by rotational moulding from premium food grade materials
  • Computer aided rib design to give your tank great rigidity
  • No centre pole and No vertical join (parting) lines. Virtually eliminates the thin spots that can occur in some other designs (Round Tank Models)
  • The self cleaning dome design top completely does away with the difficult to fit internal supports of other makes and reduces leaf build-up 
  • Made tough from quality Australian materials especially designed to handle Australian conditions
  • UV stabilised for even longer life
  • Manufactured using environmentally friendly processes. Our tanks meet the requirements of the AU/NZ 4766 tank standard for peace of mind
  • Bonus tank inclusions. Order online today and receive a FREE BONUS strainer, overflow, and watermarked approved brass flange & chrome ball valve (up to 40mm).

Be sure to see how our tanks compare by clicking on the comparison table below, and comparing for yourself.





  • "Great service, great communication and great products."

    M Jones
    Hi Wayne, Thanks for your prompt reply. I have just paid via internet transfer. You guys are great. In the last 6 months I have bought three 22700lt tank packages from you. My plumber could not find a product even close to the quality and price you are offering. I have recommended you to two friends and both have purchased from you. Every time you, have supplied, great service, great communication and great products. Keep up the good work. When someone asks me "where is the best place to buy a water tank", I shout, The Water Tank Factory! REGARDS M JONES
  • "Considering the quality of your product, I believe I received the best available product for a good price"

    Alex from Stokers Siding
    I recently purchased a tank online (Inv 6692) that was delivered by Tweed Tanks last week. This is the 4th Duraplas tank I have purchased. I wish to commend the delivery driver on his prompt & professional service. The experience was positive & exceeded any expectation I had. I would also like to commend you on delivering a quality product. The price was not the cheapest but was extrememly competative & I chose to support a local company. Considering the quality of your product, I believe I received the best available product for a good price. I will continue to recommend & use your products. Regards, Alex from Stokers Siding


Round Water Tanks

Amazing Value Tanks. Up to 34,000L

Slimline Water Tanks

Great for tight spaces. Up to 5,000L

Underground Tanks

Totally out of sight. Up to 5,000L

Steel Tank Range

Round, Slim, Modline, Square & More.

What are you waiting for? Invest in a quality tank today  SEE OUR FULL TANK RANGE & ORDER ONLINE