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)
...

CM327606A - Aluminium Anode - for use in salt and brackish water.
Fits Johnson 2 - 150HP Outboards
Dimensions:
Length: 60.96mm (2.400in)
Width: 22.86mm (0.900in)
Depth: 12.70mm (0.500in)
Categories: Outboard Anodes,...

CM589350A - Aluminium Anode - for use in salt and brackish water.
For Lewmar thrusters with a 185mm tunnel diameter.
Dimensions:
Length: 15.24mm (0.600in)
Width: 45.72mm (1.800in)
Depth: 15.24mm (0.600in)
Categories:...

CMMP83RA - Aluminium Anode - for use in salt and brackish water.
• Universal anode for 83mm Max Prop 3-blade Classic propeller hubs.
• Also fits Max Prop 5-blade Whisper propellers with a 110mm or 115mm hub.
• Anode base diameter:...

CM806190KITA - Aluminium Anode - for use in salt and brackish water.
Fits: Bravo 1, 2, 3 and Blackhawk Sterndrive Lift-Trim Cylinder Rams
This kit contains:
• CM806190 X 1
• Mounting Hardware
Replaces Mercury Part:...

CM34127A - Aluminium Anode - for use in salt and brackish water.
Fits Mercruiser R/MR/Alpha One, Sterndrive & Transom Assy (1983-90) & prior drives, Alpha One, Gen II (1991 & Up)
Dimensions:
Length: 127.00mm (5.000in)...

CMX100 - Zinc Anode - for salt water use. Not recommended for fresh water.
Dimensions:
Length: 100.08mm (3.940in)
Width: 148.08mm (5.830in)
Depth: 100.08mm (3.940in)
Categories: Propeller / Shaft Anodes, Propeller Anode,...

CM63D4525101A - Aluminium Anode - for use in salt and brackish water.
Dimensions:
Length: 83.82mm (3.300in)
Width: 60.96mm (2.400in)
Depth: 33.02mm (1.300in)
Categories: Outboard Anodes, Plate Anode, Martyr Anodes, Yamaha...

CM821629KITA - Aluminium Anode - for use in salt and brackish water.
Fits Mercruiser Alpha One Generation Two Sterndrives
This kit contains:
• CM821629 X 1
• Mounting Hardware
Dimensions:
Length: 170.94mm (6....

CMOMCV4V6KITA - Aluminium Anode - for use in salt and brackish water.
Fits OMC Johnson/Evinrude V4-V6 HP Outboards
This kit contains:
• CM393023 X 1
• CM392123 X 1
Dimensions:
Length: 203.20mm (8.000in)
...