Your browser version is not officially supported, and you may experience a degraded service. Please upgrade your browser.

Join us, supporting Navico Group, at the South Coast Boat Show! Stand 6 | 9-11 May 2025

MG Duff ZD78B Straight Zinc Hull Anode for Salt Waters (4.0kg / Bolt)

Product code: 812017
Manufacturer SKU: ZD78BKIT

MG Duff ZD787B straight shaped zinc sacrificial hull anode, suitable for use in salt waters. Sacrificial anodes should be fitted and correctly bonded to all boats / vessels to help prevent corrosion... Read more

Description

Description

MG Duff ZD787B straight shaped zinc sacrificial hull anode, suitable for use in salt waters. Sacrificial anodes should be fitted and correctly bonded to all boats / vessels to help prevent corrosion by cathodic protection when in the water.

Cathodic protection is an electrochemical process which halts the natural reaction (corrosion) of metals in a particular environment by superimposing an electrochemical cell more powerful than the corrosion cell. Sacrificial anodes are fitted or bonded to the metal to be protected which in turn, as it has a greater electrical potential than the anode material, becomes cathodic and causes the anode to waste instead of itself.

All cathodic protection systems must be inspected annually and the sacrificial anodes renewed if more than 50% are wasted. You should check the working surface of the sacrificial anode to ensure that it is free of paint and chalky corrosion deposits. When fitting or replacing a sacrificial anode you should also replace the serrated fan disc washers under the nuts and change the anode backing sheet on wood and GRP hulls. Exposed fixing studs, nuts and washers should be well greased or painted after assembly.

MG Duff Sacrificial Zinc Hull Anode

- MG Duff Part Number: ZD78B

- Construction: Zinc

- Nominal Weight: 4.0kg

- Fixing Type: Bolt on

- Bolt Size: 10mm (M10)

- Bolt Centres: 200mm (8")

- Anode Length: 305mm

- Anode Width: 76mm

- Anode Height: 32mm

Specifications
Material Zinc
Hole Centres 200mm (8")
Primary Construction Zinc
Style Straight Anodes
Suitable For Salt Waters
Backing Pad 812917
Fixing Bolt on, 10mm bolt (M10)
Replaces Can replace 812077 (ZD78BCP) when ordered with 1 x 812917 Backing Pad, 2 x 812980 Anode Fixings and 1 x 734153-A Bonding Cable.
Brand MG Duff
Model ZD78B
Height Description 32mm (1-1/4")
Width 76mm (3")
Length 305mm
Weight 4.0kg
Ask a question
MG Duff ZD78B Straight Zinc Hull Anode for Salt Waters (4.0kg / Bolt)

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Quantity

We offer credit and pay as you go accounts...

We offer accounts to all of our trade customers. There are two types; Credit Accounts and Cash Accounts. They both give trade price benefits, with the credit accounts offering monthly credit facilities, and the Cash Accounts enabling you to pay as you go.

Apply for an account I have an account, I need a login