WGR-8M | 8" Grille for MRW8 8" Marine Subwoofer from $19.95 $29.95 Color White Black Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. 8" Marine Grade Grille - sold individually Black and White Colors Available Fits the MRW8 8" Marine Subwoofer