GROCO Bronze Clam Shell Style Hull Strainer w/Mount Ring f/Up To 1-1/2" Thru Hull

The GROCO Bronze Clam Shell Style Hull Strainer with Mount Ring for up to 1-1/2" thru hull fittings is a marine essential for any serious angler or boater who depends on clean raw water circulation. After years on the water, you know that a failing strainer means clogged engine cooling lines, overheating, and a costly day cut short—or worse. This bronze hull strainer protects your engine intake by trapping debris, seaweed, and sediment before they enter your cooling system, keeping your vessel running smoothly in any condition.

Built from C84400 bronze—an alloy proven for marine saltwater resistance and durability—this strainer features a clam shell design that opens easily for quick cleaning without breaking the thru hull connection. The cast filter slots are engineered to capture particles while maintaining adequate flow rate, and the integrated pressure relief hole prevents dangerous backpressure buildup during extended use. The included mount ring design is the real game-changer: it allows you to access and service the strainer basket without disturbing your thru hull fitting, saving you time and reducing the risk of water intrusion during maintenance.

This strainer is ideal for inboard and inboard/outboard engines fitted with 1-1/2" thru hull openings, and it's equally at home on saltwater and freshwater vessels. Installation is straightforward if you're comfortable with basic marine plumbing, and routine maintenance—simply opening the clam shell to rinse the basket—takes minutes. Whether you're running a center console, displacement cruiser, or commercial fishing platform, this GROCO strainer represents the kind of preventive maintenance that keeps you fishing and cruising rather than troubleshooting.