GROCO BM-1 Monel Basket - 1.9" x 5.2"

The GROCO BM-1 Monel Basket is a replacement raw water strainer basket engineered for marine and offshore applications where corrosion resistance and durability are non-negotiable. Constructed from high-strength Monel—a nickel-copper alloy specifically chosen for its exceptional resistance to saltwater corrosion—this 1.9" × 5.2" basket delivers reliable sediment filtration in demanding salt-air and brackish-water environments where standard stainless steel would degrade.

The BM-1 features an improved handle design that simplifies basket removal and cleaning during regular maintenance cycles. Monel's superior corrosion resistance means fewer replacement intervals and longer service life compared to conventional materials, a significant advantage when operating offshore or in coastal waterways where saltwater immersion is constant. The 1.9-inch diameter fits compact through-hull strainer housings while the 5.2-inch length provides adequate surface area for effective particle capture without excessive pressure drop across the filter media.

This replacement basket is designed for use with GROCO ARG-500, ARG-755, and SA-500 raw water strainers—standard equipment on commercial fishing vessels, marine workboats, and blue-water cruising sailboats. The basket's Monel construction ensures compatibility with the robust build quality of these strainer housings while providing the corrosion performance necessary for year-round saltwater service. Regular basket cleaning and periodic replacement maintains optimal flow rates and prevents sediment accumulation that can compromise cooling systems and through-hull equipment.