Red Sea ReefMat 1200 — 115 ft Replacement Fleece Roll for Automatic Roller Filter

The Red Sea replacement fleece roll for the ReefMat 1200 is the official refill for the largest roller filter in the line: 35 m (115 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: 35 m (115 ft)
• Width: 17 cm (6.7 in)
• 50 gsm non-woven polyester fleece, high-flow, skimmer friendly
• Made for the Red Sea ReefMat 1200
• Roll changes happen without removing the filter from the sump or shutting off the pumps

How long does a ReefMat 1200 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 17 cm wide for the ReefMat 1200; the 500 roll is 11.3 cm and the 250 roll is 8 cm.

How do I know when to change the roll on my ReefMat 1200?

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.

I'm installing a ReefMat 1200 in an older Reefer — what else do I need?

On first-generation REEFER systems, the sock holders must come out before installation — the ReefMat Sump Modification Kit includes the blades and scraper made exactly for that job.