Slimline Water Tanks

Our Range of Slimline Water Tanks


While these tanks are slimmer than regular tanks, they do not compromise on water storage capacity or quality and offer a perfect solution where access or space is tight.

Our Slimline range tanks range from 1,002 Litres to 5,336 Litre capacities and are available in over 20 colour combinations.

We offer fast delivery throughout NSW, ACT, VIC & QLD and our 10 year 'no split' fix or replace warranty means that you can purchase with confidence.

Still not sure what you need? Simply contact us to discuss your requirements and arrange a quote.


Why Buy From Poly Water Tanks


  • Built to cure properly, no rush job production for a premium-grade finish
  • Made from the best materials, UV-stabilised virgin food-grade polyethene with no taste or smell (drinking water–compatible)
  • Certified to Australian Standards (AS2070)
  • Small footprint design with no waste, giving the biggest storage capacity for its real estate

Slimline Rainwater Tank Features

Slimline water tank overview
  1. Stainless steel screws and strainer mesh
  2. Dome tops with a clean and stylish aesthetic and self-supporting structure; no poles needed inside the tank
  3. Manufactured with a graduated thickness in walls, utilising hoop strength for evenly distributed pressure from the top to bottom
  4. Unique smooth wall design with no vertical parting lines; no weak wall pressure points
  5. Unique modular system with our exclusive connection process allows for our hoop strength standard