Aquatop Recife Pre-Filter Sock Replacement 150 Micron. Aquatop’s Pre-Filter Sock uses a 150 micron mesh to trap fine particles and prevents then from settling in the sump or being circulated back into the aquarium. This leads not only to higher water quality and healthier aquatic life but also greater water clarity and improved overall aesthetics. Fits the Aquatop Reef/Recife Series Sump Systems.
Dimensions: W 4” x D 4” x H 14.5”