GROCO BM-7 Monel Basket - 3.1" x 10.6"

The GROCO BM-7 Monel Basket is a replacement raw water strainer component engineered for marine and offshore applications where corrosion resistance is non-negotiable. Measuring 3.1 inches in diameter by 10.6 inches in length, this basket is constructed from high-strength Monel—a nickel-copper alloy selected specifically for its superior resistance to salt-water corrosion and seawater-induced stress. The BM-7 is designed as a direct fit for GROCO's ARG-2015 raw water strainer system, making it the correct service part for routine maintenance and replacement cycles in saltwater environments.

Monel baskets outlast stainless steel alternatives in aggressive marine conditions because Monel exhibits superior resistance to pitting and crevice corrosion—the two failure modes that plague traditional strainers in continuous saltwater exposure. The 3.1-inch diameter sizing fits mid-range through-hull strainer applications, while the 10.6-inch length provides adequate surface area for effective debris capture without creating excessive pressure drop across the strainer housing. The improved handle design facilitates easier removal and cleaning during routine maintenance at sea, reducing downtime and extending service intervals. At 1 pound, the basket is lightweight enough for single-handed extraction while remaining rigid under the structural loads of high-velocity seawater flow.

This replacement basket addresses the specific needs of vessel operators, marine engineers, and offshore platform crews who depend on reliable raw water cooling and intake systems. Saltwater-cooled propulsion systems, deck washdown loops, and ballast intake manifolds all require strainer baskets that resist the corrosive action of seawater minerals and dissolved salts. Monel's performance in these applications has made it the standard material for critical marine infrastructure. Owners of GROCO ARG-2015 strainer systems benefit from keeping spare BM-7 baskets on board, ensuring that routine cleaning or emergency replacement can occur without operational delay.