Ultra slimline modular tanks are ideal for modern residential and commercial buildings. Betta Tanks uses highly durable, fire-resistant materials in manufacturing these tanks for reliability and performance. The ultra slimline tanks come in a range of sizes for better rainwater storage and can also be fitted in addition to any existing water storage systems for greater storage capacity. Expect nothing less than the same high-quality of workmanship, material and durability as our standard modular products. These are guaranteed to offer a long-term solution for rainwater management. Ultra slimline tanks are best suited for cities, urban areas and tight spaces.