Gray Advertising Pty Ltd Home ›› Local Listings ›› SA ›› Adelaide ›› Gray Advertising Pty Ltd SA Business Services Adelaide, SA 5010 Contact Sales0402636826https://thintanks.com.au On the forefront of ground breaking technology, the Australian-made ThinTanks™ range of rainwater storage tanks has been developed for space-saving water conservation across both residential and commercial applications.