The Aquatop RCP-CF500UV Replacement Coarse Filter Sponge is designed for use with the CF-500UV and CF-500UV MKII canister filters. This blue coarse sponge pad provides effective mechanical filtration by trapping larger debris before it reaches finer media, helping to maintain clean, clear aquarium water. It supports overall filter efficiency and is suitable for both freshwater and saltwater systems.

Why You’ll Love It:

• Compatible with CF-500UV and CF-500UV MKII canister filters

• Captures large particles and waste to improve water clarity

• Durable blue coarse sponge for mechanical filtration

• Easy to install and replace

• Safe for freshwater and saltwater aquariums