This dispensing nozzle fits the 2.5 gallon (10L) and 5 gallon (20L) Scepter Water Container, making it easy to fill water bottles, cooking pots, etc. Screws snugly to the pour spout on Scepter Containers. Blue spring-loaded nozzle control lever has two operating positions. Pushed one way the lever opens the nozzle for water flow and stays open until flipped closed. Pushed the other direction the nozzle stays open until the lever is released.