DuPont FilmTec™ XLE-PRO-2540 Extra-Low-Energy RO Membrane Element
The DuPont FilmTec™ XLE-PRO-2540 is a tape-wrapped, spiral-wound RO element engineered to produce high-quality permeate at exceptionally low feed pressure. As the lowest-pressure element in DuPont’s large-commercial line, it delivers strong productivity and 99.0% nominal salt rejection while cutting pump energy and operating cost — an advantage that is especially pronounced in cold-water and low-TDS feed conditions. Built on a durable polyamide thin-film composite membrane, it drops into any standard nominal 2.5-inch I.D. pressure vessel.
📄 Download the DuPont Product Datasheet (PDF) Official DuPont Product Data Sheet, Form No. 45-D03972-en (Rev. 6).
Performance Specifications
| Specification | Value |
|---|---|
| Manufacturer | DuPont Water Solutions (FilmTec™) |
| DuPont Part Number | 12082909 |
| Element Configuration | Tape-wrapped, spiral-wound |
| Membrane Type | Polyamide Thin-Film Composite |
| Active Membrane Area | 28 ft² (2.6 m²) |
| Permeate Flow Rate | 1,000 GPD (3.8 m³/day) |
| Stabilized Salt Rejection | 99.0% |
| Minimum Salt Rejection | 97.0% |
| Shipping Weight | ~6 lbs (boxed) |
| Shipping Dimensions | 4" × 44" × 4" (boxed W × L × D) |
| HS Code (Tariff) | 8421.21.0000 — water filtering/purifying apparatus |
| Warranty | 1-Year materials & workmanship; 3-Year prorated performance warranty from DuPont (commercial elements, per DuPont conditions) |
Operating & Limiting Conditions
| Parameter | Limit |
|---|---|
| Maximum Operating Temperature | 113°F (45°C) |
| Maximum Operating Pressure | 600 psi (41 bar) |
| Maximum Pressure Drop (per element) | 13 psi (0.9 bar) |
| Maximum Feed Flow Rate | 6 gpm (1.4 m³/h) |
| Maximum Feed Silt Density Index (SDI) | SDI 5 |
| Free Chlorine Tolerance | < 0.1 ppm |
| pH Range — Continuous Operation | 2 – 11 |
| pH Range — Short-Term Cleaning (30 min) | 1 – 13 |
Physical Dimensions
| Dimension | Value |
|---|---|
| Overall Length | 40.0 in (1,016 mm) |
| Outer Diameter | 2.4 in (61 mm) |
| Permeate Tube Outer Diameter | 0.75 in (19 mm) |
| Fits Pressure Vessel | Nominal 2.5" I.D. |
| Coupler (ordered separately) | FilmTec™ P/N 89055 (incl. two 2-210 EPR O-rings, P/N 89255) |
Performance based on DuPont standard test conditions: 2,000 ppm NaCl feed, 125 psi (8.6 bar) applied pressure, 77°F (25°C), pH 8, and 15% recovery. Permeate flow for individual elements may vary but will be no more than 20% below the nominal value. Reference: DuPont Product Data Sheet, Form No. 45-D03972-en.
Typical Applications
- Commercial drinking-water systems for hotels, restaurants, and cafés
- Schools, offices, and institutional potable-water treatment
- Water vending, refilling, and bottling stations
- Car-wash spot-free rinse systems
- Light commercial brackish / low-TDS water treatment
- Small commercial RO systems up to 10 gpm (2.3 m³/h)
- Boiler make-up and humidification water pretreatment
- Laboratory and lab-grade water pretreatment
- Beverage, coffee, and food-service water polishing
- Energy-sensitive and cold-water RO systems where low feed pressure is critical
Frequently Asked Questions
What is the DuPont FilmTec XLE-PRO-2540?
It is a 2.5" × 40" extra-low-energy (XLE) reverse osmosis membrane element manufactured by DuPont Water Solutions. It produces up to 1,000 GPD at 99% salt rejection and is designed for energy-efficient commercial water treatment.
How many gallons per day (GPD) does it produce?
Up to 1,000 GPD (3.8 m³/day) at DuPont’s standard test conditions (2,000 ppm NaCl, 125 psi, 77°F, pH 8, 15% recovery).
What salt rejection does the XLE-PRO-2540 achieve?
99.0% stabilized salt rejection, with a minimum of 97.0%.
Does the XLE-PRO-2540 replace the older FilmTec XLE-2540?
Yes. “XLE PRO” is DuPont’s current designation for this low-energy 2540 element and is a direct, drop-in replacement for the FilmTec XLE-2540.
What pressure vessel does it fit?
Any nominal 2.5-inch I.D. RO pressure vessel. Multiple elements are joined with FilmTec™ coupler part number 89055, which is ordered separately.
What is the price of the XLE-PRO-2540?
ForeverPure lists the XLE-PRO-2540 at $249.00 each. Contact us at 408-969-2688 for volume and OEM pricing.
What is the difference between the XLE-PRO-2540 and the BW30-PRO-2540 or TW30-PRO-2540?
All three are 2.5"×40" FilmTec elements. The XLE (extra-low-energy) runs at the lowest feed pressure for energy savings; the BW30 is optimized for brackish water and the TW30 for standard tap water. Choose XLE when energy efficiency or cold-water performance is the priority.
Also known as / compatible references: FilmTec XLE-2540, DuPont XLE PRO 2540, XLE PRO-2540, low-energy 2540 RO membrane, DuPont part 12082909.
Frequently Asked Questions: XLE-2540 vs. XLE PRO-2540
What happened to the FilmTec XLE-2540?
DuPont discontinued the original FilmTec XLE-2540 and replaced it with the FilmTec XLE PRO-2540, its official direct successor. It drops into the same 2540 housings with no system modifications.
What is the difference between the XLE-2540 and the XLE PRO-2540?
- Current vs. discontinued: the XLE PRO-2540 is the element DuPont manufactures today; the XLE-2540 is no longer produced. Remaining “XLE-2540” stock on the market is new-old-stock that may have been warehoused for years.
- Performance: Substantially higher rated output: 1,200 GPD for the PRO vs. 850 GPD for the original XLE-2540 — about 40% more water. Both carry 99.0% stabilized rejection. Test pressures differ slightly (125 psig PRO vs. 100 psig original, both 500 ppm NaCl feed).
- Newer manufacturing platform: the PRO series is built on DuPont's current precision, automated fabrication line, delivering tighter element-to-element consistency than the legacy process.
- Dry-shipped element: the XLE PRO-2540 ships as a dry element — long shelf life and quick performance stabilization at start-up.
What is the same on both elements?
- Form factor: standard 2540 size (40″ length, 0.75″ permeate tube), tape-wrapped construction — fully interchangeable in standard 2540 pressure vessels with no system modifications.
- Rated performance basis: Both are extra-low-energy 2540-format elements (28 ft²-class active area) rated at 99.0% stabilized rejection on a 500 ppm NaCl feed.
- Membrane chemistry: polyamide thin-film composite (TFC).
- Operating limits: 600 psig maximum operating pressure, 113 °F (45 °C) maximum temperature, feed SDI ≤ 5, free chlorine < 0.1 ppm.
Can I replace my XLE-2540 with a XLE PRO-2540 without changing my system?
Yes. The XLE PRO-2540 is a drop-in replacement for the XLE-2540 — same dimensions, connections, and vessel fit. No re-plumbing, housing change, or pump adjustment is required for a standard installation.
Which applications is the XLE PRO-2540 designed for?
Extra-low-energy small commercial RO systems where pump energy or available power is limited.
