For maximum coverage and an extra thorough clean, use the Quad Stream nozzle to concentrate water into four wide streams between teeth and along the gum line.A powerful stream of water For a regular clean 2 nozzles F1 Standard nozzle for a regular clean F1 Standard nozzle for a regular clean Use the standard nozzle for a regular clean. It uses a single stream of water to remove debris and clean thoroughly between your teeth. Guidance tip ensures correct placement Guidance tip ensures correct placement The slim angled nozzle and guidance tip make finding the correct placement easy. Position the nozzle tip