Looking for a stylish 50 gallon rainwater barrel? We have it. Do you require a large underground rain water storage tank? Tank-Depot is the leading supplier of high capacity water tanks. Perhaps you are looking for a decorative unit such as the Nino Series Rain Barrel. Rainwater Collection - Rain Barrels, Rainwater Harvesting Please note: You are currently browsing img 25 unique decorative rain barrels ideas on pinterest that is 736x552px in size. This image is listed in decorative rain barrels garden category. Rainwater Collection Rain Barrels, Rainwater Harvesting, 736x552 in 93.26 KB.