Red Sea ReefMat Fleece-Rolls are official, non-woven replacement media rolls designed specifically for the ReefMat automatic roller filter series. The rolls utilize a highly porous, 50 gsm (grams per square meter) polyester structural weave that efficiently traps fine organic particulates, detritus, and free-floating debris without restricting vital water flow or adding chemical binding agents to the aquarium.
Sizing & Compatibility Matrix
Fleece rolls are customized by model size to fit the internal spindle spacing and structural width limitations of each filter chassis:
| Compatible Filter Unit |
Roll Width |
Total Length |
Average Lifespan Range |
| Red Sea NanoMat |
5.5 cm (2.2") |
18 Meters (59 ft) |
3 to 5 Weeks |
| Red Sea ReefMat 250 |
8.0 cm (3.15") |
32 Meters (105 ft) |
4 to 6 Weeks |
| Red Sea ReefMat 500 |
11.3 cm (4.4") |
28 Meters (92 ft) |
5 to 8 Weeks |
| Red Sea ReefMat 1200 |
17.5 cm (6.9") |
35 Meters (115 ft) |
6 to 10 Weeks |
Key Performance Benefits
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Protein Skimmer Safe: These official rolls are chemically inert and skimmer-friendly. Cheap third-party alternatives often contain chemical residues from production that alter water surface tension, causing protein skimmers to overflow violently.
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Smart App Tracking: An internal tracker within the ReefBeat App measures exact motor rotations to estimate your remaining roll lifespan in days, notifying your phone when the media drops below a 10% threshold.
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Dry Roll Extraction: The design keeps the clean roll completely dry until it is pulled down into the water track. Used fleece winds directly onto a separate disposal spool for neat, drip-free disposal during maintenance.