Fully automated production ensures consistency whilst maximizing the usable surface area of this multi-leaf membrane. The 1.8'' ROM elements repeatedly perform to specification, with flows up to 30% higher than traditionally hand-rolled elements, which are often prone to a high failure rate in-situ. The 1.8'' membranes are a reliable choice for applications from laboratory to residential systems. For use with the ROH-1812 housing and most other 1812 housings.

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Frequently asked questions

Membranes are sized by output — commonly 35, 50, 75, 100 or 150 gpd — so check your current membrane's rating or your system's spec sheet before ordering a replacement.

Typically every 12–24 months depending on your incoming water quality and usage — a drop in produced water quality or reduced output is usually the clearest sign it's due.

No — gpd (gallons per day) is a measure of output capacity, not filtration quality. A higher-rated membrane produces water faster but doesn't filter to a finer standard than a lower-rated one of the same type.

It's good practice, since worn pre-filters shorten membrane life — but pre-filters (sediment, carbon) typically need changing more often (every 6–12 months) than the membrane itself.

Yes — isolate and depressurise the system, then the membrane housing simply opens to swap the membrane, no specialist tools required. Follow your system's specific instructions for the exact steps.