Red Sea NanoMat — 2-Pack of 59 ft Replacement Fleece Rolls for Compact Roller Filter

The Red Sea 2-pack of NanoMat replacement fleece rolls is the official refill for the compact roller filter: each roll carries 18 m (59 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

• 2 rolls per pack
• Length of each roll: 18 m (59 ft)
• Width: 5.5 cm (2.2 in)
• 50 gsm non-woven polyester fleece, high-flow, skimmer friendly
• Made for the Red Sea NanoMat
• Roll changes happen without removing the filter or shutting off the pumps

How long does a NanoMat 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 NanoMat runs without an app: a quick look at the roll during regular maintenance is all it takes, its auto-shutdown prevents fleece waste, and with a 2-pack you always have the next refill on hand.

Frequently asked questions

Do these rolls fit the ReefMat 250, 500 or 1200?

No — every model takes a roll cut to its exact width. These are 5.5 cm wide for the NanoMat; the ReefMat 250 uses an 8 cm fleece.

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

The NanoMat has no app: check the roll during your regular maintenance. Its auto-shutdown mechanism prevents fleece waste, and the swap takes moments with no tools.

Why a 2-pack?

Red Sea sells the NanoMat refill as a duo: install the first roll and keep the second in reserve, so your mechanical filtration never runs dry.