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The Tecnoseal disc-type sacrificial anode, made of aluminium and zinc, is designed to effectively protect submerged metal parts from galvanic corrosion. Its double disc configuration ensures long-lasting and efficient protection for your boat. Ideal for marine applications requiring reliable cathodic protection.

| Code | Material | kg | lbs | Ø | c | h | Ø1 | |
| R7AL | Aluminium | 1.44 | 3.17 | mm inch | 165 6.50 | 13 0.51 | 22 0.87 | 9 0.35 |
| R7 | Zinc | 3.89 | 8.58 | mm inch | 165 6.50 | 13 0.51 | 22 0.87 | 9 0.35 |