Perko 3-1/2" Round Bronze Strainer MADE IN THE USA

The Perko 3-1/2" Round Bronze Strainer is a marine-grade through-hull fitting essential for any serious boater or angler who relies on raw water cooling systems. After decades on the water, you know that engine overheating ruins a day of fishing and can strand you far from shore—this strainer prevents that by filtering debris before it reaches your cooling system.

Cast from marine-grade bronze, the Perko strainer resists corrosion in saltwater and freshwater environments—critical for longevity in harsh marine conditions. Its 3-1/2" round design captures seaweed, shells, sand, and organic matter before they clog intake lines or damage impellers, while the perforated basket allows unrestricted water flow to maintain proper cooling capacity.

This strainer suits inboard and inboard/outboard cooling systems, auxiliary engines, and high-flow applications where routine maintenance access is standard. Installation is straightforward on any vessel with a raw-water intake line; periodic basket cleaning keeps your engine running cool during peak season.