The Nepall Pneumatic Water Fairy NX-300 is a compact water filter device with dimensions of 8cm diameter and 5cm height. This device appears to be designed for water treatment or filtration applications. Key features: • Compact size: 8cm diameter x 5cm height • Pneumatic operation system • Clear transparent design • Durable construction • Easy installation Due to limited product information provided, specific details about functionality, flow rate, filter capacity and installation requirements are not available. Please consult the product manual or manufacturer specifications for complete usage instructions.