Perko 1/2" Intake Strainer Bronze MADE IN THE USA

The Perko 1/2" Intake Strainer Bronze is a marine-grade cast bronze intake fitting engineered for raw water cooling systems on vessels. Built to withstand continuous saltwater immersion, this intake strainer prevents debris, sediment, and marine growth from entering engine cooling lines—a critical function for offshore operations, commercial fishing, and long-distance cruising where cooling system failure can disable a vessel far from assistance.

Manufactured in the USA from cast bronze, this strainer features precision-machined slots that filter intake water while maintaining flow rate sufficient for continuous engine operation. The 1/2-inch pipe connection accommodates standard through-hull fittings, with a maximum hull thickness rating of 2-1/4 inches and a mounting footprint of 3 x 4 inches. Flange-mounted design secures via #8 fasteners, and the unit ships complete with a flanged nut (0075 spare available separately) for secure installation. The cast bronze construction resists galvanic corrosion in saltwater environments far longer than ferrous alternatives, and the open-basket design allows rapid inspection and cleaning without full system shutdown.

This intake strainer is specified for inboard marine engines, auxiliary cooling systems on offshore research vessels, and any raw water cooling application where blockage would interrupt operations. Operators managing vessels in high-debris environments—tropical anchorages, estuaries, or waters with seasonal algae blooms—rely on Perko strainers to extend the service interval between cooling system flushes and prevent costly impeller damage. The Perko 1/2" model (Part #0065DP4PLB, UPC 085226342257) is a direct replacement for OEM cooling system maintenance on hundreds of marine powerplant configurations.