GROCO Perforated Hull Strainer for 3-Inch Thru-Hull

The GROCO Perforated Hull Strainer for 3-Inch Thru-Hull mounts over a compatible thru-hull intake to help keep larger debris away from the opening before it enters the boat's raw-water plumbing. Its bronze construction is intended for durable marine service below the waterline when installed with compatible hull hardware.

The strainer pattern allows water to reach the thru-hull while screening out larger material that could obstruct the intake. An access-door design on supported models lets the thru-hull be reached for inspection or service without removing the entire exterior strainer from the hull.

Confirm thru-hull size, hull contour, intake flow requirements, fastener compatibility, bonding practices, and installation location before mounting. Bed the strainer with an appropriate marine sealant, avoid restricting the intake opening, and inspect the slots or holes regularly for marine growth and debris. Explore our full range of bilge and water pumps.

• The exterior pattern protects the raw-water intake opening.
• Marine-grade construction supports demanding submerged service.
• An access door simplifies inspection of the thru-hull.
• Properly sized openings screen debris without blocking the intended supply.