Products / Filter Elements
Our 4040 RO membrane elements effectively remove dissolved salts, bacteria, viruses and other impurities from water, producing clean and safe water for municipal, industrial and commercial applications. Stable flux, long service life and consistent rejection performance.
| Type | Polyamide composite reverse osmosis membrane element |
|---|---|
| Nominal size | 4 inch × 40 inch (4040) |
| Performance | High salt rejection, stable flux |
| Housing compatibility | Standard 4040 membrane housings |
| Typical applications | Industrial & commercial RO, desalination, boiler feed water |
| Note | Membrane element only — stainless steel housing sold separately |
Typical specifications shown. Sizes, materials and connections can be customised — send us your duty conditions and we will confirm the exact model.
See the full specifications, options, applications and buying FAQ on our manufacturer page — or send your duty conditions for a factory-direct quote.
View Stainless Steel Membrane Housing Supplier → Request a QuoteCommon questions about the 4040 RO Membrane — click a question to expand.
A polyamide composite 4040 RO element rejects dissolved salts (TDS), bacteria, viruses and most organic molecules, producing low-TDS permeate for industrial, commercial and desalination use. It is the membrane only — it is housed inside a separate stainless steel membrane housing.
Typical service life is 2–3 years under normal feed conditions, but it depends on feed quality, operating pressure and cleaning frequency. Regular CIP cleaning and proper pre-filtration (our bag/cartridge housings) significantly extend membrane life.
Yes. It is built to the standard 4-inch × 40-inch (4040) size and fits common 4040 membrane housings, including our own stainless steel membrane housings. Send us your housing model and we will confirm compatibility before you order.
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