zinc anodes, trim tab anodes, grouper anodes, sacrificial zinc anodes, cathodic protection anodes, anode, cathodic protection, sacrificial anode, anodes, grouper zinc anode, grouper zinc http://www.getaprop.com/content-categories/cat-359_502/groupers.html Sat, 26 May 2012 14:04:18 -0500 en GP-1, 6 Pound Zinc Anode... Six pound overboard zinc anode with 20 ft. vinyl coated galvanized steel cable and electrical connector for grounding. Boat owners can extend the life of their shaft and propeller anodes by connecting the Grouper to a the vessels bonding system. http://www.getaprop.com/content-product_info/product_id-1993/grouper.html http://www.getaprop.com/images/products/19923[1].jpg http://www.getaprop.com/content-product_info/product_id-1993/grouper.html