10PCS Stainless Steel Koi Fish Pond Filter Brushes for Aquarium

These aquarium filter brushes are designed to improve filtration in koi fish ponds and other aquatic environments.

• Core material: 304 stainless steel wire, 1.6 mm diameter
• Brush bristles made of green cross wire with strong wool yarn tenacity
• Bristles resist deformation and can be reused for extended periods
• Cross hair structure enhances adsorption and captures particulates and biofilm
• Increases surface area for beneficial nitrifying bacteria growth
• Supports physical filtration and biochemical cleaning functions
• Can be used in filter boxes, filter barrels, and at various points within filters
• Includes 10 filter brushes per package