Only the scaled bottles JOBO are equipped with a patented lid which seals the bottles 100% without using any foam. Instead, the JOBO lid has a conical shape which makes sure no oxygen enters the bottle - and no liquid drops out. Bottles using foam lids for sealing are always a potential danger for contamination as the foam will unavoidably take up particles of chemistry. Foam-sealed lids must not be swapped between different chemicals. JOBO lids can easily be washed clean. Scaled bottles from JOBO will offer a life-long of good service.
