Red Sea ReefMat 250 — 105 ft Replacement Fleece Roll for Automatic Roller Filter

The Red Sea replacement fleece roll for the ReefMat 250 is the official refill for your automatic roller filter: 32 m (105 ft) of 50 gsm non-woven polyester fleece — high-flow and skimmer friendly — the exact same fleece that ships with the unit.

Official Red Sea specifications

• Length: 32 m (105 ft)
• Width: 8 cm (3.2 in)
• 50 gsm non-woven polyester fleece, high-flow, skimmer friendly
• Made for the Red Sea ReefMat 250
• Roll changes happen without removing the filter from the sump or shutting off the pumps

How long does a roll last?

Red Sea publishes no fixed lifespan: consumption depends on your tank's bioload, feeding and stocking. If you see a number of weeks quoted elsewhere, it doesn't come from the manufacturer. The ReefBeat app tracks your real consumption, shows the days remaining and warns you before the roll runs out — keep a spare on hand so you're never caught short.

Frequently asked questions

Does this roll fit the other ReefMat models?

No — every model takes a roll cut to its exact width. This one is 8 cm wide for the ReefMat 250; the ReefMat 500 roll is 11.3 cm and the 1200 roll is 17 cm.

How do I know when to change the roll on my ReefMat 250?

ReefBeat tells you: the End of Roll Monitor calculates the days remaining from your average usage, and the filter notifies you if the fleece runs out, tears or jams.

Do I need tools to change the roll?

No. Red Sea designed the system so the roll swaps out without pulling the ReefMat from the sump and without shutting off the pumps.