Seamless connection: This hose coupling provides a quick and reliable link between your vacuum's suction system and the tank, helping to reduce setup time and maintain suction effectiveness. Designed for compatibility: Specifically engineered for models 81, 101, 102, and the entire 400 series to ensure dependable operation. Materials: Constructed from sturdy materials to withstand regular use in intensive cleaning scenarios. Installation made simple: The intuitive design allows you to the coupling without advanced skills or special tools. Use scenarios Routine maintenance and replacement: Ideal when the coupling shows wear or damage on models 81, 101, 102, or the 400 series, enabling a fast swap to minimize downtime. use cleaning environments: In professional or facilities cleaning where these vacuums run frequently, the quickconnect design supports fast setup between tasks. Onsite service or upgrades: Useful during service calls or upgrades to ensure consistent suction performance when connecting the vacuum to the tank.