Sea-Dog Stainless Steel Chain Stopper - 5/16" - 3/8" [321825-1] Marine Plumbing & Ventilation | Accessories No knobs to loosen or

No knobs to loosen or tighten

over-temperature

Designed for all water-safe materials

3 Position Rocker Switch

Sea-Dog Stainless Steel Chain Stopper - 5/16" - 3/8" [321825-1] Marine Plumbing & Ventilation | Accessories No knobs to loosen orStainless 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".