Use Option (1) to select Shaft Diameter size
Martyr Limited Clearance Shaft Anodes features easy installation underwater, bolt retaining washers prevent the anode from falling off.  Full shaft contact, 100% circular radius.  Interlocking halves with extra alloy around fastener.
| Product Number | Weight (kg) | H (mm) | OD (mm) | ID (mm) | 
| CMC20 | 3.16 | 25 | 54 | 20 | 
| CMC25 | 0.31 | 32 | 63 | 25 | 
| CMC30 | 0.49 | 32 | 63 | 30 | 
| CMC35 | 0.55 | 32 | 76 | 35 | 
| CMC40 | 0.69 | 32 | 76 | 40 | 
| CMC45 | 1.22 | 35 | 89 | 45 | 
| CMC50 | 1.22 | 35 | 89 | 50 | 
| CMC55Z | 1.42 | 29 | 114 | 55 | 
| CMC60 | 1.46 | 29 | 120 | 60 | 
| CMC65Z | 1.56 | 29 | 125 | 65 | 
| CMC70 | 1.66 | 29 | 130 | 70 | 
| CMC75 | 1.74 | 29 | 135 | 75 | 
| CMC80 | 1.81 | 29 | 140 | 80 | 
| CMC85Z | 2.78 | 32 | 153 | 85 | 
| CMC90 | 4.00 | 40 | 170 | 90 | 
| CMC95Z | 3.76 | 40 | 170 | 95 | 
| CMC100 | 4.30 | 40 | 180 | 100 | 
| CMC120 | 6.50 | 40 | 220 | 120 | 
                    
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