These desiccators have a reinforced aluminium frame, a door with magnetic catch and a circular rubber seal, 4 variable height shelves, a desiccant tray, silica gel, an easy to read electronic hygrometer, cylinder lock and hose (5 m) with two quick couplings for gas filling. The desiccators are stackable and can be used with up to 26 shelves. These desiccators have a reinforced aluminium frame, a door with magnetic catch and a circular rubber seal, 4 variable height shelves, a desiccant tray, silica gel, an easy to read electronic hygrometer, cylinder lock and hose (5 m) with two quick couplings for gas filling. The desiccators are stackable and can be used with up to 26 shelves.