The 3-pcs push-on closure with a co-injected liner is used for water cooler containers (3, 5 and 6 gallons) made out of PC or PET is compatible to the most of the bottle necks. The sealing compound assures tight sealing of the container. A plug inside the closure contributes to non-spilling, when the container is put on the cooler device. A label, glued on the top of the VALVE LOCK closure protects against dirt in the aperture and serve as tamper evidence as the same time.