About This

• Micron filter bags offer superior mechanical filtration, effectively reducing the amount of ammonia-producing organic matter in your aquarium. This also aids in protecting aquarium equipment from damage caused by both large and small objects, such as sand and coral.
• Solid construction and heavy duty stitching make these socks strong and durable so they can be cleaned and reused numerous times. Machine washable. You will receive four universally sized 4-inch filter socks. Great for sumps and ponds in freshwater and marine applications.