Sacrificial zinc anode. 2"x 2" x 1" Zinc Block
Sacrificial zinc anode. 4" x 2"x 1" Zinc Block
Sacrificial zinc anode. 6" x 2" x 1" Zinc Block
Sacrificial zinc anode. 6" x 3" x 1" Zinc Block
Sacrificial zinc anode. 6" x 4" x 1" Zinc Block