KV and N Types do not include coupling. Need to buy separately. Please contact the customer if you need to buy. packing list ： AS SKU PHOTO SHOW 1 Set the model you choose air polisher. Introduction for Air Polisher: This air prophy is a proven ergonomic and easy to use air-driven dental air polishing lightweight unit.That makes routine cleaning and polishing procedures easier and more efficient than ever before. The air prophy is a compact bicarbonate-jet whitening system with a quick-fit connection to the turbine. The air prophy has all the main advantages of the best-know devices hold famous brands: -a steady and efficient stream of powder -simplicity of use and reliability Features for Air Polisher: 1. Attractive design allows for dexterous handling & manipulation 2. 360º rotation assures effective hidden tartar removal 3. Disperses evenly with no splashing 4. Specially designed to prevent backflow and blockage 5. Easy to clean and simple to maintain 6. Easy to replace of working heads or spray nozzles Technical: 1. Autoclavable temperature :135ºC 2. Connection:2/4-hole 3. Water Pressure: 0.05MPa - 0.5MPa 4. Air Pressure: 0.2MPa-0.5MPa 5. Max. Waterflow: 30ml/min 6. Max. Powderflow: 2g-3g/min

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