Cleansui MD311-WT Faucet-Mounted Water Purifier Mitsubishi Chemical Cleansui Unused Purchased on Amazon. This product has the same specifications as the MD301. Cartridge (MDC01S) not included. The LCD screen displays the remaining cartridge life and battery replacement indicator. A green light indicates the appropriate flow rate. When the remaining life is low, an orange light flashes to indicate it's time to replace the cartridge. 3-stage switching: purified water / raw water shower / raw water straight. Removes 17+3 substances. The Clean Nozzle, where the water outlet is renewed with each cartridge replacement. Approximately 30% water-saving shower. Set Contents / Main unit Battery CR2032 Installation parts set Instruction manual Images 1 and 7-9 are for illustrative purposes. Everything shown in image 2 is included. Please check the images carefully before making a decision. We are not responsible for initial defects. Price reduction is not possible.