ARISTON Magnesium Anode M8 Ø21.3×550 mm, BDR 100/150 L, 291088

ARISTON 291088 is a magnesium sacrificial anode for water heaters, designed to protect the water-heater tank against electrochemical corrosion. During operation, the magnesium anode gradually wears away, taking the corrosive effect upon itself and helping protect the metal tank.

The anode has a diameter of 21.3 mm, a length of 550 mm and an M8 mounting thread. This version features an extended mounting thread designed for the corresponding ARISTON water-heater construction.

Spare part 291088 is specified for ARISTON BDR 100 and BDR 150 litre water heaters. Before ordering, it is recommended to verify the exact water-heater model and the mounting dimensions of the existing anode.

A magnesium anode is a consumable component. Its wear rate depends on water chemistry, water hardness, operating temperature and the intensity of water-heater use, therefore the condition of the anode should be inspected periodically.

Timely replacement of a worn magnesium anode helps reduce the risk of tank corrosion and maintain effective corrosion protection. During servicing, it is also advisable to inspect the heating element, gasket and internal tank surface.

When selecting a replacement anode, it is important to verify not only its length and diameter but also the M8 mounting thread and extended-thread design. Article 291088 is intended for specific ARISTON BDR-series water heaters.

Technical information