GROCO 3/4" Ball Valve/Seacock & Raw Water Strainer Combo

The GROCO 3/4" Ball Valve/Seacock & Raw Water Strainer Combo combines raw water intake protection and shut-off control into a single, space-efficient component built for reliable marine plumbing systems. This integrated seacock and strainer assembly eliminates the need for separate installations, reducing both installation complexity and the number of through-hull penetrations required on your vessel—a critical consideration for maintaining hull integrity and simplifying bilge maintenance.

The ball valve features a square hole in the handle that accepts standard ratchets, enabling operation with mechanical advantage in tight engine compartments where hand clearance is limited. The 3/4" port size handles typical raw water circulation demands for cooling systems, generators, and heat exchangers on boats in the 25–45-foot range. A grease zerk fitting (operable only with the valve in the open position) and integral drain plug provide straightforward maintenance access. The strainer chamber captures debris, sand, and marine growth before water enters sensitive cooling circuits—protecting pumps and heat exchangers from blockage and corrosion damage common in saltwater environments.

This configuration serves both weekend cruising operations and full-time offshore fishing runs where raw water system reliability directly impacts engine cooling performance and safety. Anglers and cruising sailors value the consolidated design because it occupies minimal locker space, simplifies winterization procedures, and reduces the potential leak points that come with multiple separate fittings. The GROCO brand reputation in marine plumbing—known for corrosion-resistant materials and field-proven designs—makes this combo a practical upgrade for vessels with aging or undersized intake systems.