The undersink type instantly transforms into a portable disaster kit for BS, and is recommended for those who use an undersink type. Soak the water intake part in the raw water and pump it up and down to use. Purified water is released from the nozzle of the main unit. Even when the water is stopped, you can filter the water and create purified water without using electricity, so it can be used not only during disasters, but also outdoors. When using a countertop type, please purchase a hand pump only. In addition, this product has been upgraded from a long nozzle (regular specification) to a flexible nozzle.