A range of 3 high quality, reusable aquarium filter bags providing different levels of mechanical filtration. These 10.5″/26cm long filter bags for Red Sea’s REEFER and MAX-S aquariums will also fit any standard 4″/10cm filter bag holder.
100 micron felt filter bags are designed to provide fine ‘polishing’ of water that is already low in particulate matter (mature aquariums).
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