ASC Water Tanks has Australia’s largest range of slimline rainwater tanks. Our slimline rainw ater tanks are all guaranteed by a ten year manufacturers warranty and we guarantee to be the cheapest for the popular slimline tanks we sell. To help you find the right product, choose from one our slimline water tanks based on capacity or your location. Not only do we stock Australia’s favorite tanks, such as All Weather and Supatank, our large range of water storage solutions ensures you can find the right product in your city, whether you are in Melbourne, Sydney, Adelaide or Brisbane. Our slimline rain tanks include both the single piece design, as well as modular slimline tanks, letting you choose the right capacity you want. Looking for a round tank? Click here to see our complete range.