Check the listing for details. 225 MICRON THIN-MESH FILTER BAG - RED SEA. Condition: New. Listed at 10.99 USD. 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. 225 micron felt filter bags are ideal for regular day to day use and enable a longer period between cleaning than with the 100 micron bags. 225 micron thin-mesh aquarium filter bags are perfect for new setups and after heavy maintenance or whenever there is a lot of particulate matter in the water. They are also suitable as a holder for other mechanical or chemical filter media. The monofilament construction of these bags makes them very easy to clean. These bags are now used in REEFER™ and MAX-S™ Systems. Listing and template services provided by inkFrog