Davis Instruments Rocker Stopper Boat Stabilizer (352)

The Davis Instruments Rocker Stopper (352) helps dampen a boat's rocking motion at anchor. Used in strings suspended underwater on each side of the boat, these lightweight stabilizers provide a practical way to reduce movement while you are stopped.

Key features

• Rocking reduction: Designed to dampen motion on anchored sailboats and powerboats.
• High-impact styrene: Lightweight molded construction suitable for saltwater use.
• Nesting design: Units stack inside one another for compact storage.
• Additional applications: Can be used for drift fishing or to help stabilize the end of a dock.

Setup at anchor

Make a string of Rocker Stoppers spaced approximately 18 inches apart, with a 5–10 lb weight attached at the bottom. Hang one string on each side of the boat, positioned so the units remain underwater. Use 3/8-inch braided nylon or three-strand nylon line.

Mushroom anchors are a suitable weight option because they nest inside the bottom unit. Consult the quick guide for setup details before deployment.

Recommended units per side

• Boats up to 26 feet: 3 units per side
• Boats 27–36 feet: 4 units per side
• Boats 37–42 feet: 5 units per side
• Boats 43–50 feet: 8 units per side

These quantities are for each side of the boat, not the total installation.

Drift fishing and dock use

For drift fishing, use without a weight or with a reduced weight to help slow the boat's drift. Rocker Stoppers may also be used at the end of a dock to help reduce rocking.

Specifications

• Brand: Davis Instruments
• Product: Rocker Stopper Boat Stabilizer
• Part number: 352
• Material: High-impact styrene
• Recommended line: 3/8-inch braided or three-strand nylon
• Recommended bottom weight for anchored use: 5–10 lb per string
• UPC: 011698035205

Product resource

Download the quick guide (PDF)