Model : DU-852 This DYNAIR brand portable dental systems is complete design for replacement of dental chair. It is designed for dentist to take care their patients who need complete dental practice. Features include: 3-Way Syringe High and Low Volume Evacuation 800ml water supply reservoir 1400ml waste container with automatic overflow shutoff Accept two handpieces with 2 hole or 4 hole Curing Light Build in Scaler System Build Water Supply Self Contained Air compressor On/Off Foot Switch