TV3 Foam Lok
When the Cannavac LOK button is Vertical (LOK arrow points to button) the Container is locked.
TO UNLOCK - Pull locking button out slightly and make 1/4 turn left. Now push the button and pull up on the cap. This is how you remove the cap.
TO CLOSE VAC - Push the button in (locking button is horizontal) and push the cap down. Once cap is on the body, 1/4 turn of locking button to the right and this locks the container.