GROCO BM-15 Monel Basket - 3.1" x 18.3"

The GROCO BM-15 Monel Basket is a replacement raw water strainer component engineered for marine engine cooling systems and offshore equipment applications. Constructed from high-strength Monel—a nickel-copper alloy prized for superior corrosion resistance in saltwater and brackish environments—this 3.1" × 18.3" strainer basket delivers reliable flow management in systems where standard steel would degrade rapidly.

Monel's inherent resistance to chloride corrosion and seawater attack makes it the material standard for marine raw water systems. The BM-15 features an improved handle design for secure removal and reinstallation during routine maintenance cycles. At 0.65 lbs and measuring 3.1 inches in diameter with 18.3 inches of effective filtration length, this basket is engineered to fit GROCO ARG-3000 and 932-3000 strainer housings. The dimensional specifications ensure compatibility with the pressure differentials and flow rates typical of marine propulsion cooling loops and auxiliary seawater systems.

This replacement basket is essential for vessel operators and marine technicians performing preventive maintenance on raw water intake systems. Clogged or deteriorated strainer baskets restrict cooling flow, reducing engine efficiency and risking overheating in extended cruising or working conditions. The GROCO BM-15 is a direct-fit solution for scheduled basket replacement, restoring full system flow capacity and maintaining reliable engine temperature control across freshwater, brackish, and saltwater installations.

GROCO strainer baskets are industry-standard components for commercial fishing vessels, military auxiliary craft, and offshore support operations where system reliability directly impacts mission capability and safety. Keep a spare BM-15 on board for rapid replacement during underway or dockside maintenance.