Martyr CMX18 anode, 4.5 inch ID
- Brand:
- Martyr
- Part no:
- CMX18
Where to buy
View on Amazonpaid link
Martyr anode, part number CMX18. Size: 4.5 inch ID. Match the anode to the one you're replacing and to your water: zinc for salt, aluminum for salt or brackish, magnesium for fresh only. Check the number against your old part before you buy.