Specification Brand : Pro Marine BulletPoint1 : Cathodic protection for Pleasure craft boats BulletPoint2 : Magnesium Alloy for use only in fresh water BulletPoint3 : Only alloy proven to protect in fresh water BulletPoint4 : Not recommended for use in salt or brackish water BulletPoint5 : High-quality Martyr anodes are pressure diecast and manufactured to strict quality standards through an ISO 9001 Quality Management System BulletPoint6 : Mil Spec Alloy BulletPoint7 : Easy Install BulletPoint8 : Protects against Stray Current BulletPoint9 : Magnesium Alloy for use only in freshwater Color : One CustomerPackageType : Standard Packaging Department : unisex-adult ExteriorFinish : Zinc ExternallyAssignedProductIdentifier1 : 628309123680 ExternallyAssignedProductIdentifier2 : 0628309123680 ExternallyAssignedProductIdentifier3 : 00628309123680 GpsrSafetyAttestation : 1 IncludedComponents1 : Lock IncludedComponents2 : Latch ItemDisplayWeight : 480 grams ItemName : Martyr CMGROUPERM, Magnesium Grouper Hanging Anode ItemPackageDimensions_Height : 29.21 centimeters ItemPackageDimensions_Length : 5.08 centimeters ItemPackageDimensions_Width : 15.748 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : boating-deck-hardware LockType : Key Lock Manufacturer : Martyr Material : Aluminum Material1 : Metal Material2 : Zinc MetalType : Zinc Alloy ModelName : Anode ModelNumber : CMGROUPERM NumberOfBoxes : 1 NumberOfItems : 1 PackageLevel : unit PartNumber : CMGROUPERM Pattern : Solid ProductDescription : 15' of cable. Do Not connect to battery. Z- Zinc for saltwater. M- Magnesium (Freshwater use only). A- Aluminum for salt and brackish water ProductSiteLaunchDate : 2005-06-08T00:00:00-00:00 Size : 1 Count (Pack of 1) StreetDate : 2009-02-20T00:00:01Z Style : Magnesium SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 50500000