Lighting : bulb is integrated in the bowl, thus spreading the illumination evenly and preventing eye strain and fatigue at night.
Access to compensation or lighting : easy, with unique flange-clip system.
Compensation can be adjusted from the outside, with no need to open the compass on the bracket version.

Watertight construction :
• One-piece moulded flange and bowl.
• Viton® diaphragm with extreme expansion and retraction capacity : compensates the fluctuations in fluid volume caused by differences in temperature and atmospheric pressure, preventing the formation of bubbles.
• Moulded-in sunken head screws.