MGDUFF specializes in marine cathodic protection products designed to reduce galvanic corrosion of underwater metal components. The company supplies sacrificial anodes for hulls, shafts, propellers, engines, outdrives, saildrives, bow and stern thrusters, as well as other marine equipment.

The MGDUFF product range includes zinc anodes for salt water, aluminium anodes for salt and brackish water, and magnesium anodes for fresh water. A wide selection of configurations and applications allows MGDUFF anodes to be used across different types of boats, yachts, propulsion systems, and marine installations.
Fast deliveries of yacht equipment, calculation, selection of analogues and spare parts. Send us your request and we will contact you ASAP with a solution. We deliver in Cyprus, throughout Europe and worldwide. More than 10 years of experience.
Email us: info@yacht-supply24.com or fill our Feedback form. You can also fill out the "Ask a question" form on the right or at the bottom of the page.
|
1-2 weeks delivery time The MgDuff Aluminium Weld-On Anode is a rectangular sacrificial anode designed to protect boat hulls and rudders against corrosion. Available in three models: AD60 (320 × 125 × 25 mm) with a 380 mm welding strip, AD78 (305 × 76 × 32 mm) with a 385 mm welding strip and AD73 (356 × 152 × 32 mm) with a 456 mm welding strip. The aluminium body provides sacrificial corrosion protection, while the extended strip enables welded installation. Each model is supplied individually. |
$ 42.33
Size:
| |
|
1-2 weeks delivery time The MgDuff Zinc Teardrop Weld-On Anode is a sacrificial anode designed to protect boat hulls and rudders against galvanic corrosion in marine environments. Available in two models: ZD76 (114 × 76 × 32 mm) with a 160 mm mounting strip and ZD77 (157 × 83 × 41 mm) with a 230 mm mounting strip. The ZD77 version additionally specifies a mounting hole spacing of 200 mm. Both models feature a teardrop-shaped zinc body with an extended mounting strip and are supplied individually. |
$ 28.58
Size:
| |
|
1-2 weeks delivery time The MgDuff Magnesium Teardrop Anode is a sacrificial anode designed to protect boat hulls and rudders against galvanic corrosion. Available in two models: MD76 (114 × 76 × 32 mm) with a 160 mm mounting strip and 140 mm mounting hole spacing, and MD77 (157 × 83 × 41 mm) with a 230 mm mounting strip and 200 mm mounting hole spacing. Both models feature a teardrop-shaped magnesium body with an extended mounting strip. The MD76 is specified for saltwater applications, while the MD77 is described for freshwater and saltwater use. Each model is supplied individually. |
$ 25.75
Size:
| |
|
1-2 weeks delivery time The MgDuff Zinc Weld-On Anode is a rectangular sacrificial anode designed to protect boat hulls and rudders against galvanic corrosion. Available in three models: ZD75 (100 × 45 × 28 mm) with a 152 mm mounting strip, ZD79 (171 × 83 × 41 mm) with a 230 mm mounting strip and ZD78 (305 × 76 × 32 mm) with a 385 mm mounting strip. The ZD79 model additionally features a mounting hole spacing of 200 mm. Each anode is manufactured from zinc and features an extended mounting strip for installation on the vessel. Supplied individually. |
$ 112.41
Size:
| |
|
1-2 weeks delivery time The MgDuff Magnesium Weld-On Anode is a rectangular sacrificial anode designed to protect boat hulls and rudders against galvanic corrosion. Available in two models: MD79 (171 × 83 × 41 mm) with a 230 mm mounting strip and 200 mm mounting hole spacing, and MD78 (305 × 76 × 32 mm) with a 385 mm mounting strip. Both models feature a magnesium anode body with an extended mounting strip for installation on the vessel. Designed for marine corrosion protection and supplied individually. |
$ 78.99
Size:
| |
|
1-2 weeks delivery time The MgDuff Aluminium Teardrop Weld-On Anode is a sacrificial anode designed to protect boat hulls and rudders against corrosion. Available in three models: AD76 (114 × 76 × 32 mm) with a 165 mm mounting strip, AD77 (157 × 83 × 41 mm) with a 230 mm strip and AD79 (171 × 83 × 41 mm) with a 230 mm strip. The AD77 and AD79 models feature a mounting hole spacing of 200 mm. Each anode has a teardrop-shaped aluminium body with an extended mounting strip and is supplied individually. |
$ 14.69
Size:
| |
|
1-2 weeks delivery time The MgDuff Aluminium Hull and Rudder Anode is a rectangular sacrificial anode designed to protect marine metal components against galvanic corrosion in freshwater, brackish water and saltwater environments. Manufactured from an aluminium alloy designed for uniform consumption, the range includes three models: AD72B (457 × 102 × 64 mm) with 229 mm mounting hole spacing, AD77EURO (318 × 65 × 32 mm) with adjustable hole spacing of 110–210 mm and AD78B (305 × 76 × 32 mm) with 200 mm hole spacing. The AD77EURO and AD78B models feature two M10 bolt holes instead of a welding strip. Each anode is supplied individually. |
$ 165.49
Size:
| |
|
1-2 weeks delivery time The MgDuff Magnesium Hull and Rudder Anode is a rectangular sacrificial anode designed to protect boat hulls and rudders against galvanic corrosion. Available in three models: MD72B (457 × 102 × 64 mm) with 229 mm mounting hole spacing, MD77EURO (318 × 65 × 32 mm) with a mounting hole spacing range of 110–210 mm, and MD78B (305 × 76 × 32 mm) with 200 mm mounting hole spacing. Manufactured from magnesium, these anodes feature mounting openings for installation on the vessel. Each model is supplied individually. |
$ 252.45
Size:
| |
|
1-2 weeks delivery time The MgDuff Zinc Hull and Rudder Anode is a rectangular sacrificial anode designed to protect boat hulls and rudders against galvanic corrosion. Available in six models with body dimensions ranging from 200 × 65 × 32 mm to 457 × 102 × 64 mm. Mounting configurations include fixed hole spacings of 110, 200 and 225 mm, as well as adjustable spacing ranges of 100–210 mm and 200–229 mm, depending on the model. Manufactured from zinc, the anodes feature mounting holes or elongated slots for installation on the vessel. Each model is supplied individually. |
$ 269.48
Size:
| |
|
1-2 weeks delivery time The MgDuff MGDA Aluminium Propeller Shaft Anode is a ring-shaped sacrificial anode designed to protect marine propeller shafts against corrosion in brackish and saltwater environments. Its steel core prevents the anode from becoming loose around the shaft. Available in six versions for shaft diameters of 25, 30, 35, 40, 45 and 50 mm, with body lengths of 65–100 mm and external diameters of 56–85 mm. The aluminium construction provides sacrificial corrosion protection, while the steel core helps maintain the anode's position around the shaft. |
$ 46.97
Diameter, mm:
| |
|
1-2 weeks delivery time The MgDuff MGD Zinc Propeller Shaft Anode is a ring-shaped sacrificial anode designed to protect marine propeller shafts against corrosion in saltwater environments. Its integrated steel core prevents the anode from becoming loose around the shaft. Available in nine variants for imperial shaft diameters of 3/4", 7/8", 1", 1 1/8", 1 1/4", 1 3/8", 1 1/2", 1 3/4" and 2". Depending on the selected version, the anode measures 65, 78 or 100 mm in length, with external diameters of 56, 70 or 85 mm. Manufactured from zinc, it provides sacrificial corrosion protection for marine shaft installations. |
$ 45.72
Shaft Diameter:
| |
|
1-2 weeks delivery time The MgDuff Zinc Propeller Shaft Anode is a ring-shaped sacrificial anode designed to protect marine propeller shafts against corrosion in saltwater environments. Its integrated steel core prevents the anode from becoming loose around the shaft. Available in eight variants for shaft diameters of 25, 30, 40, 45, 50, 60 and 70 mm, with anode lengths ranging from 32 to 100 mm and external diameters from 56 to 113 mm. Two versions are available for Ø25 mm shafts, differing in their external dimensions: 65 × Ø56 mm and 32 × Ø63 mm. Manufactured from zinc, these anodes provide sacrificial corrosion protection for marine shaft installations. |
$ 34.49
Diameter, mm:
| |
|
1-2 weeks delivery time The MgDuff Round Zinc Hull and Rudder Anode is a dish-shaped sacrificial anode designed to protect boat hulls and rudder blades against galvanic corrosion in saltwater environments. Its profile is designed to minimise water resistance, while the M10 mounting holes provide a defined installation arrangement. Available in four models: ZD56 (Ø100 × 25 mm), ZD58 (Ø150 × 35 mm), ZD35 (Ø160 × 30 mm) and ZD55 (Ø225 × 25 mm). Manufactured from zinc, these anodes provide sacrificial corrosion protection and are supplied individually. |
$ 25.76
Diameter, mm:
| |
|
1-2 weeks delivery time The MgDuff Aluminium Round Hull and Rudder Anode is a dish-shaped sacrificial anode designed to protect boat hulls and rudder blades against corrosion in freshwater environments. Its streamlined profile is designed to minimise water resistance while providing sacrificial protection for underwater metal components. Available in four models: AD56 (Ø100 × 25 mm), AD58 (Ø150 × 35 mm), AD35 (Ø160 × 30 mm) and AD55 (Ø225 × 25 mm). Manufactured from aluminium, the anodes feature a central mounting opening and are supplied individually. |
$ 13.06
Diameter, mm:
| |
|
1-2 weeks delivery time The MgDuff Magnesium Round Hull and Rudder Anode is a dish-shaped sacrificial anode designed to protect boat hulls and rudder blades against galvanic corrosion in freshwater environments. Its dish-shaped profile is designed to minimise water resistance during operation. Available in two models: MD56 (Ø100 × 25 mm, product number 1786) and MD58 (Ø150 × 35 mm, product number 1787). Manufactured from magnesium, both versions feature a central mounting opening and provide sacrificial corrosion protection for underwater metal components. Supplied individually. |
$ 35.14
Diameter, mm:
| |
|
1-2 weeks delivery time The MgDuff CMAN Zinc Propeller Shaft Cap Nut Anode is designed for corrosion protection in marine propeller assemblies. It features a tapered section with an integrated keyway designed to match the OEM hub used in Beneteau and Jeanneau propeller configurations. Available in five variants for shaft diameters of 25, 30, 35, 40 and 45 mm, with corresponding mounting hole diameters of 25–45 mm and external anode diameters ranging from 34 to 61 mm. Manufactured from zinc, the anode provides sacrificial corrosion protection for marine metal components. Each variant is supplied individually. |
$ 15.27
Diameter, mm:
| |
|
1-2 weeks delivery time The MgDuff Neoprene Anode Backing Plate is designed to prevent wear on the rear surface of hull and rudder anodes, helping to reduce the risk of the anode becoming loose. Available in seven models: B56, B58, B72B, B76EURO, B77, B77EURO and B78B, with lengths from 97 to 445 mm, widths from 65 to 127 mm and thicknesses of 5 or 6 mm. Each backing plate is designed for specific MgDuff anode models, including AD56/ZD56, AD58/ZD58, AD72B/ZD72B, AD76/ZD76, AD77 Euro/ZD77 Euro and AD78B/ZD78B. Select the appropriate backing plate according to the anode model and installation dimensions. |
$ 1.83
Size:
| |
|
1-2 weeks delivery time The MgDuff ASC Aluminium Propeller Shaft Ring Anode is designed for installation against the front face of the propeller, providing sacrificial corrosion protection in brackish and saltwater environments. Available in seven variants for shaft diameters of 22, 25, 30, 35, 40, 45 and 50 mm. The ring-shaped aluminium anodes have external diameters of 60–81 mm and overall lengths of 15.5 or 18 mm, depending on the selected model. Choose the appropriate ASC version according to the propeller shaft diameter and required external dimensions. |
$ 17.53
Diameter, mm:
| |
