Sea-Dog Stainless Steel Chain Stopper - 5/16" - 3/8" [321825-1] Marine Plumbing & Ventilation | Accessories For a one-touch analysis of

For a one-touch analysis of detector performance

Suggested mount: Shakespeare Style 4187 or 5187

3 Position Rocker Switch

No knobs to loosen or tighten

Sea-Dog Stainless Steel Chain Stopper - 5/16" - 3/8" [321825-1] Marine Plumbing & Ventilation | Accessories For a one-touch analysis ofStainless Steel Chain Stopper 5 16" 3 8" Chain Stoppers help prevent damage to the windlass and reduce the risk of accidental free fall of the anchor while under way. Chain Stoppers mount alone or inside most bow rollers and work with your anchor roller to take tension off your windlass. Chain and rope should be secured at anchor when your windlass is not in use to avoid high loads the windlass was not designed for. 321820 fits chain sizes 3 16" 1 4".