R3 Trim Tab anode by American Anodes Co.      This is a high quality anode, heavier than Camp Co.   We sell them by the thousands.

• Size 3-3/4" diameter
• Pancake style, in two pieces
• Weight:  1.60 lbs.
• Locked in place stainless nut
• Allen head stainless bolt
• U.S Mil-Spec