The Aquatop RCP-CF400UV Replacement Coarse Filter Sponge is designed specifically for the CF-400UV and CF-400MKII canister filters. This blue coarse sponge pad provides efficient mechanical filtration by capturing large debris and particles, helping to maintain optimal water clarity and support overall filter performance.

Why You’ll Love It:

• Compatible with CF-400UV and CF-400MKII canister filters

• Blue coarse sponge pad for mechanical trapping of larger particulates

• Helps keep water crisp and aids filter longevity

• Easy to install and replace

• Suitable for both freshwater and saltwater aquariums