Lids for 5, 7, 11 and 21 l are available in 3 versions: A USON lid with easy syringe detachment as seen above to the left, a Clamp lid as seen in the middle and a Standard lid as seen above to the right.
The USON lid with easy syringe detachment can be operated with one hand, has statutory holes for pulling off needles and the lid has temporary and permanent closing option. For permanent closing of the container, the small flaps have to be bend downwards before they are pushed down to the holes.