LG BW 4040 ES Low Pressure RO Membrane
LG (NanoH2O) · Low Pressure
- Size
- nominal 4 x 40 in
- Rated flow
- 2,500 gpd
- Operating pressure
- 150 psi (1.03 MPa)
$419.00In stock
View
Low Pressure RO Membranes
Start with the code on your old element.
Low pressure RO elements in 2521, 2540, 4021, 4040 and 8040 sizes, rated at a lower test pressure than brackish elements: 100 to 150 psi on 500 to 2,000 ppm NaCl. Some maker datasheets call them ultra low pressure or low energy. Match the code on your element, then compare the figures on each product page.
Size
Home RO elements (1812 to 2812)
Brands listed: CSM - Toray, LG - NanoH2O, Trilite, Vontron.
Trilite BWLE-4040 Low Pressure RO Membrane
Trilite · Low Pressure
- Size
- nominal 4 x 40 in
- Rated flow
- 2,600 gpd
- Operating pressure
- 150 psi (1.03 MPa)
$297.00In stock
View
Trilite BWULE-4040 Ultra Low Pressure RO Membrane
Trilite · Ultra Low Pressure
- Size
- nominal 4 x 40 in
- Rated flow
- 2,600 gpd
- Operating pressure
- 100 psi (0.69 MPa)
$297.00In stock
View
Vontron ULP21-4040 Low Pressure RO Membrane
Vontron · Low Pressure
- Size
- nominal 4 x 40 in
- Rated flow
- 2,600 gpd
- Operating pressure
- 150 psi (1.03 MPa)
$365.00In stock
View
Vontron ULP11-4040 Low Pressure RO Membrane
Vontron · Low Pressure
- Size
- nominal 4 x 40 in
$365.00In stock
View
Vontron XLP11-4040 Ultra Low Pressure RO Membrane
Vontron · Ultra Low Pressure
- Size
- nominal 4 x 40 in
- Rated flow
- 2,600 gpd
- Operating pressure
- 100 psi (0.69 MPa)
$365.00In stock
View
Vontron ULP31-4040 Low Pressure RO Membrane
Vontron · Low Pressure
- Size
- nominal 4 x 40 in
- Rated flow
- 2,000 gpd
- Operating pressure
- 150 psi (1.03 MPa)
$345.00In stock
View
Vontron ULP21-2540 Low Pressure RO Membrane
Vontron · Low Pressure
- Size
- nominal 2.5 x 40 in
- Rated flow
- 750 gpd
- Operating pressure
- 150 psi (1.03 MPa)
$325.00In stock
View
CSM RE4040-BLN Low Pressure RO Membrane
CSM (Toray) · Low Pressure
- Size
- nominal 4 x 40 in
- Rated flow
- 2,600 gpd
- Operating pressure
- 150 psi (1.03 MPa)
Vontron ULP21-4021 Low Pressure RO Membrane
Vontron · Low Pressure
- Size
- nominal 4 x 21 in
- Rated flow
- 950 gpd
- Operating pressure
- 150 psi (1.03 MPa)
Vontron ULP21-2521 Low Pressure RO Membrane
Vontron · Low Pressure
- Size
- nominal 2.5 x 21 in
- Rated flow
- 300 gpd
- Operating pressure
- 150 psi (1.03 MPa)
LG BW 400 ES Low Pressure RO Membrane
LG (NanoH2O) · Low Pressure
- Size
- nominal 8 x 40 in
- Rated flow
- 10,500 gpd
- Operating pressure
- 150 psi (1.03 MPa)
Vontron ULP22-8040 Low Pressure RO Membrane
Vontron · Low Pressure
- Size
- nominal 8 x 40 in
- Rated flow
- 12,100 gpd
- Operating pressure
- 150 psi (1.03 MPa)
No models match these filters.
Cannot find your model?
Send us the code printed on your element, or the make of the machine it came out of. We will check what fits.
Ordering 5 or more? Call or chat for trade pricing.
Sizes
Each maker's own length and outside diameter are in the spec table on its product page. Flow, rated rejection and pressure differ by model, so compare the figures on each product page.
Reading a size code
25Nominal diameter, tenths of an inch
21Length in inches
2521 and 2540 are nominal 2.5 inch elements, 21 and 40 inches long
Per FilmTec's datasheets, 2521 and 2540 elements are made for a nominal 2.5 inch vessel, 4021 and 4040 for a nominal 4 inch vessel, and the BW30-400 for a nominal 8 inch vessel; CSM's RE4040 datasheets say the same for the 4040.
| Code | Nominal | Actual element (length x outside diameter) | Maker sheets say it fits |
|---|---|---|---|
| 2521 | nominal 2.5 x 21 in | 533 x 61 mm (21.0 x 2.4 in) | FilmTec SW30 sheet (Form 45-D01519-en Rev 10): nominal 2.5 inch vessel |
| 2540 | nominal 2.5 x 40 in | 1,016 x 61 mm (40.0 x 2.4 in) | FilmTec SW30 sheet (Form 45-D01519-en Rev 10): nominal 2.5 inch vessel |
| 4021 | nominal 4 x 21 in | 533 x 99 mm (21 x 3.9 in) | FilmTec SW30 sheet (Form 45-D01519-en Rev 10): nominal 4 inch vessel |
| 4040 | nominal 4 x 40 in | 1,016 x 99 to 100.3 mm (40.0 x 3.9 to 3.95 in), by maker | FilmTec and CSM sheets: nominal 4 inch vessel |
| 8040 | nominal 8 x 40 in | 1,016 x 200 to 201 mm (40.0 x 7.9 in) | FilmTec BW30-400 sheet (Form 45-D01505-en Rev 4): nominal 8 inch vessel We do not list an 8 inch vessel. Ask us. |
From the maker's datasheets
- Earlier datasheets list the BW 4040 R, BW 4040 ES and BW 400 ES as LG models; the current datasheets (v260930) are issued by NanoH2O Co., Ltd.
Seawater, brackish or low pressure?
Test basis from the maker datasheets we hold. Each product page shows its own figures.
Low pressure
100 to 150 psitest pressure
Rated at a lower test pressure, on 500 to 2,000 ppm salt water.
2521 to 8040
You are here
Replacing the vessel too?
Per FilmTec's datasheets, 2521 and 2540 elements are made for a nominal 2.5 inch vessel and 4021 and 4040 for a nominal 4 inch vessel (CSM's RE4040 datasheets say the same for the 4040). Check the vessel's design pressure against your system before you order.
| Image | Vessel | For elements | Design pressure | Price | View |
|---|---|---|---|---|---|
| 2.5 x 21 in FRP vesselMembrane pressure vessel | Size2521 | Design pressure1,000 psi (7.0 MPa) | from $395.00 | View | |
| 2.5 x 40 in FRP vesselMembrane pressure vessel | Size2540 | Design pressure1,000 psi (7.0 MPa) | from $465.00 | View | |
| 4 x 21 in FRP vesselMembrane pressure vessel | Size4021 | Design pressure300 psi (2.1 MPa) | from $295.00 | View | |
| 4 x 40 in FRP vesselMembrane pressure vessel | Size4040 | Design pressure300 psi (2.1 MPa) | from $339.00 | View | |
| 4 x 40 in FRP housingMembrane pressure vessel | Size4040 | Design pressure1,000 psi (7.0 MPa) | from $980.00 | View | |
| 8040 elements | We do not list an 8 inch vessel. Ask us. | ||||
Datasheets by model
Who we supply and how it ships
We supply defence, government and universities. We supply across Australia and overseas.
Since 1998MDC Water
Tax invoiceOn every order
Next business dayDispatch on in-stock items
Remote sitesFreight Australia-wide
