This system comprises a submersible tube with an external diameter of 32 mm and a wall thickness of 2 mm, a 1.4571 stainless steel holder for the submersible tube with a flange, a plastic* closure (with a PG screw fitting) and a stop ring plus two ring seals. It is suitable for all 19 mm diameter lamps and thus also ideal for uv-technik's high-performance amalgam lamps with a diameter of 19 mm. The tube system is intended for use in both water and gas/air and is pressure resistant up to 10 bar. uv-technik can supply the appropriate ballasts if requested – ready-installed in a control cabinet where this is required.