Keep your aquarium water crystal clear with these high-quality 2.75-inch filter socks. This convenient 2-6 pack of 225-micron filter socks provides excellent mechanical filtration for your tank setup. The socks are designed to fit universally in standard 2.75-inch filter sock holders, making them a versatile choice for various filtration systems. Before purchasing, we recommend double-checking your holder's measurements to ensure a proper fit. The 225-micron mesh effectively traps debris, particles, and waste while maintaining proper water flow. Regular replacement of these filter socks helps maintain optimal water quality and clarity in your aquarium. These filter socks are easy to install and remove, making routine maintenance a breeze. Each sock in this value pack is precisely manufactured to the stated dimensions for consistent performance.