Robin RS301, RS401 is a lightweight and economical power sprayer that combines the ease of use of a manual sprayer with the performance of a semi-fixed type. Despite its compact size, it delivers high-pressure spraying thanks to its special rotary pump and lubrication-free design, making it ideal for a wide range of spraying applications. It features an automatic stop device to prevent damage from running dry, and a special mechanical seal for chemical resistance and durability.