The RNVac unit can be used with a 12-foot hose that provides flexibility, durability, and leakproof performance. It has a 2 1/2-inch diameter. This hose is designed to withstand frequent use and offer long-lasting performance. However, if a longer hose is required, you may choose from a range of hoses measuring 20-foot hose or 30-foot hose in length for added flexibility and convenience. These hoses offer the same level of durability and performance and are ideal for use in a range of cleaning applications.