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MGDuff AD78B Aluminium Hull Anode 200mm

MGDuff AD78B Aluminium Hull Anode 200mm

Ref: 45339/A

In stock

The MGDuff AD78B is popular hull anode for brackish waters. Hole centres distance is 8". People tend to use zinc because its cheaper but aluminium anodes are a lot lighter and can used in brackish waters.
Nominal Weigth 1.7kg
Bolt-on, Holes Centres 200mm
Length 305mm Width 76mm Depth 36mm

Material: Aluminium for brackish waters
Weight: 1.70kg
Length: 305mm
Width: 76mm
Depth: 35mm
Stud Size: 10mm
Number of Fixing Holes: 2
Fixing Hole Details: 19mm x 11mm holes at 200mm centres


1. Choose your material:
- Zinc for saltwater boats
- Aluminium for saltwater or brackish waters
- Magnesium for fresh water
2. Select Style and Model:
- Bolt-on hull anodes come with 8" or 9" hole centres (You have to buy the studs or bolts separately) weld-on requires the anode to be welded in place (usually commercial vessels)
- There are different models of anode depending on where you put it. Shaft and beneteau anodes protect the drive shaft and stern tube. Hull anodes can be placed anywhere depending on where you want to protect and pencil/engine anodes tend to be specially designed for each brand and model engine. Button or disc anodes are designed to protect rudder / trim tabs.

*For more information on placement or engine anodes please contact us on 00353 28 23190.

**With regard to steel boats, it is vital that special attention is paid to areas around the water line. These are particularly vulnerable but receive no protection from anodes above the water line.

***All MGDuff anodes will suit wood, GRP or steel hulls. For aluminium hull anodes please contact one of our branches.

Do not mix and match aluminium, zinc or magnesium anodes on the same boat.

Composition (weight %)
Iron Fe 0.12 max.
Silicon Si 0.05 - 0.15
Copper Cu 0.003
Zinc Zn 3.0 - 6.0
Indium In 0.015 - 0.030
Mercury Hg 0.001 max.
Titanium Ti 0.025 max.
Aluminium Al Remainder


Price:22.48 / STG 20.01

(Including VAT)