Mercruiser Bravo 1 Bearing CavityPerformance Metals Navalloy aluminum anodes are manufactured to the military specification MIL-DTL 24779 and are suitable for use in all water types- salt, brackish, or fresh.Note: Aluminum anodes are supplied as standard with Mercury and Mercruiser drives. Use of zinc anodes will invalidate the warranty.Specifications: Replaces: Mercury # 806188Q 1 Used on Mercruiser Bravo 1 outdrives Weight: 0.16 lbs (0.07 Kg) Standard Pack: 40 Kit Includes: Mounting hardware Installation instructions table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Truck Freight: No Oversized: No