Collection: Antifouling Systems

Protect what’s below the waterline.

Explore marine antifouling systems, sacrificial anodes and corrosion-protection products designed to help protect critical underwater components and maintain your vessel season after season.

Shop boat anodes, zinc anodes, aluminum anodes, magnesium anodes, shaft anodes, propeller anodes, trim-tab anodes and marine antifouling equipment for sailboats, powerboats, yachts and other marine applications.

Whether you're replacing worn sacrificial anodes, maintaining underwater running gear or preparing your boat for another season in the water, Roam & Harbor makes it easier to find essential products for protecting your vessel below the waterline.

From routine maintenance to long-term vessel care, choosing the appropriate corrosion and fouling protection for your boat and operating environment is an important part of keeping underwater systems maintained and ready for the water.

Protect below the waterline. Preserve the adventure.

143 products

  • Tecnoseal

    Tecnoseal Aluminum Plate Anode - 12" x 6" x 1/2" [TEC-DIVERS-AL]

    Regular price $44.33 USD
    Sale price $44.33 USD Regular price $0.00 USD

    Aluminum Plate Anode - 12" x 6" x 1/2"Specifications: Material: Aluminum Plate for hulls Dimensions: 12" x 6" x 1/2" Specifications: Material: Aluminum Box Dimensions: 1"H...

  • Tecnoseal

    Tecnoseal E2 Pencil Zinc w/Brass Cap [TEC-E2-C]

    Regular price $7.60 USD
    Sale price $7.60 USD Regular price $0.00 USD

    E2 Pencil Zinc w/Brass CapLength: 2.00"Diameter: 0.63" Specifications: Material: Zinc Box Dimensions: 1"H x 1"W x 3"L WT: 0.3 lbs UPC: 8059617819095 Quick Guide (pdf)Owner's Manual...

  • Tecnoseal

    Tecnoseal X7MG Shaft Anode - Magnesium - 1-1/2" Shaft Diameter [X7MG]

    Regular price $29.78 USD
    Sale price $29.78 USD Regular price $0.00 USD

    Shaft AnodeMaterial: MagnesiumOuter Diameter: 2.58"Inner Diameter: 1.50"Height: 2.62"Weight: 0.35lbsHoles: 4 Specifications: Material: Magnesium Box Dimensions: 2"H x 3"W x 3"L WT: 0.4 lbs UPC: 8059617812447 Quick...

  • Tecnoseal

    Tecnoseal X3 Shaft Anode - Zinc - 1" Shaft Diameter [X3]

    Regular price $9.65 USD
    Sale price $9.65 USD Regular price $0.00 USD

    Shaft AnodeMaterial: ZincOuter Diameter: 2.14"Inner Diameter: 1"Height: 2.02"Weight: 0.88lbsHoles: 2 Specifications: Material: Zinc Box Dimensions: 2"H x 2"W x 2"L WT: 0.9 lbs UPC: 8059617812249 Quick...

  • Tecnoseal

    Tecnoseal Mercury Verado 350 Aluminum Anode Kit [20817AL]

    Regular price $63.14 USD
    Sale price $63.14 USD Regular price $0.00 USD

    Mercury Verado 350 Aluminum Anode KitSpecifications: Material: Aluminum For Mercury Verado Specifications: Material: Aluminum Box Dimensions: 2"H x 5"W x 8"L WT: 1.4 lbs UPC: 8058774839502...

  • Tecnoseal

    Tecnoseal Z406 Hull Plate Anode - Zinc [TEC-Z-406]

    Regular price $79.12 USD
    Sale price $79.12 USD Regular price $0.00 USD

    Z406 Hull Plate AnodePlates for HullsMaterial: ZincLength: 8.50"Width: 4.17"Height: 1.10"Weight: 6.73lbs Specifications: Material: Zinc Box Dimensions: 1"H x 5"W x 9"L WT: 6.8 lbs UPC: 8033837068792...

  • Save $5.11 USD
    Tecnoseal

    Tecnoseal Anode Kit w/Hardware - Mercury Bravo 3 2004-Present - Zinc [20805]

    Regular price $72.99 USD
    Sale price $72.99 USD Regular price $78.10 USD

    Mercury Bravo 3 2004 Anode KitContents: (1) 00835 (1) 00820 (2) 00818 (1) 00836 (1) 00815 Material: ZincPackaging: PolybagHardware: Included Specifications: Material: Zinc Box Dimensions: 2"H...

  • Save $3.10 USD
    Tecnoseal

    Tecnoseal Anode Kit w/Hardware - Mercury Bravo 2-3 - Zinc [20804]

    Regular price $49.99 USD
    Sale price $49.99 USD Regular price $53.09 USD

    Mercury Bravo 2-3 Anode KitContents: (1) 00815 (1) 00820 (2) 00818 Material: ZincPackaging: PolybagHardware: Included Specifications: Material: Zinc Box Dimensions: 2"H x 4"W x 9"L WT:...

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