CM31640M - Magnesium Anode - for fresh water only. Not recommended for salt or brackish water. 
Fits most Mercury/Mariner outboards 35 hp and above & Mercruiser Alpha One sterndrives.
Dimensions:
Length: 83.82mm (3.300in)
...

CM806188Z - Zinc Anode - for salt water use. Not recommended for fresh water.
Bravo I 1988 - present
Dimensions:
Length: 69.85mm (2.750in)
Width: 69.85mm (2.750in)
Depth: 22.86mm (0.900in)
Categories: Sterndrive Anodes...

CMM3060KITA - Aluminium Anode - for use in salt and brackish water.
Fits F30-F40-F60 Honda Outboard Motors
This kit contains:
• CM17264C1 X 1
• CM826134 X 2
• CM818298 X 1
Dimensions:
Length: 203.20mm (8....

CM348602170A - Aluminium Anode - for use in salt and brackish water.
Dimensions:
Length: 50.80mm (2.000in)
Width: 50.80mm (2.000in)
Depth: 50.80mm (2.000in)
Categories: Outboard Anodes, Trim Tab Anode, Martyr Anodes, Tohatsu...

CMSGSP501180A - Aluminium Anode - for use in salt and brackish water.

Side Power 501180 Aluminium Thruster Anode

Outside diameter 73mm
Height 53mm
Internal diameter 8.5mm
Internal hex 31mm

Product...

CMETECG2KITA - Aluminium Anode - for use in salt and brackish water.
Fits BRP Evinrude E-TEC G2 (Generation 2) Outboards
This kit contains:
• CM5007089 X 1
• CM355964 X 1
• CM357507 X 1
• CM5009138 X 1
...

CMETECG2KITZ - Zinc Anode - for salt water use. Not recommended for fresh water.
Fits BRP Evinrude E-TEC G2 (Generation 2) Outboards
This kit contains:
• CM5007089 X 1
• CM355964 X 1
• CM357507 X 1
• CM5009138 X...

CM821631A - Aluminium Anode - for use in salt and brackish water.
Fits Alpha One Gen 1 and Alpha One Gen II outdrives.
Dimensions:
Length: 101.60mm (4.000in)
Width: 76.20mm (3.000in)
Depth: 38.10mm (1.500in)
Categories...

CM367Z - Zinc Anode - for salt water use. Not recommended for fresh water.
Transom mounted aluminum anode for boats with OMC outdrives and Johnson/Evinrude outboards that require additional protection.
Dimensions:
Length: 195.58mm (7....