SKU: 43929320823

4"x40" | 2,500 GPD | Low Energy| Fiber Wrapped | DuPont FilmTec (LC LE PRO-4040 Replaces DOW LC LE-4040)

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Description

4"x40" | 2,500 GPD | Low Energy| Fiber Wrapped | DuPont FilmTec (LC LE PRO-4040 Replaces DOW LC LE-4040)FILMTEC LC LE PRO 4040 Low Pressure (Low Energy) Commercial RO Membrane Element Direct Replacement for DOW FilmTec LC LE 4040 FilmTec LC LE PRO 4040 Elements deliver high quality water at low pressure at harsh water conditions, using technology for low energy commercial applications. DuPonts fully automated element production enables consistent products and minimizes the total cost of ownership of water treatment systems. DuPont Filmtec (Formerly DOW



FILMTEC™ LC LE PRO-4040 Low Pressure (Low Energy) Commercial RO Membrane Element

Direct Replacement for DOW FilmTec LC LE-4040

FilmTec LC LE PRO-4040 Elements deliver high quality water at low pressure at harsh water conditions, using technology for low energy commercial applications. DuPont’s fully automated element production enables consistent products and minimizes the total cost of ownership of water treatment systems.

DuPont Filmtec (Formerly DOW FILMTEC) Brackish Water Reverse Osmosis Elements separate salts from water and are produced with an automated fabrication process for precision, consistency, and reliability. FILMTEC RO membranes build on a tradition of leadership in the thin-film composite membrane industry and meet the challenges of higher rejection in lower-pressure operations.

FILMTEC LC LE PRO-4040 is FDA – 21 CFR 177.2550; Food and Drug Administration Compliant.

FILMTEC LC LE PRO-4040 is the direct replacement for DOW FilmTec LC LE-4040, which has been discontinued by the manufacturer.

Specifications for LC PRO LE-4040

FilmTec Product: LC LE PRO-4040
FilmTec Part Number: 12081512
Replaces Models:
LC LE-4040, 356603, 356602, LE-4040, 275173
BW30LE-4040
Size (Approximate): 4" Dia. x 40"L
Flow Rate: 2,600 gpd (985 m³/d)
Applied Pressure: 125 psig (8.6 bar)
Stabilized Salt Rejection: 99.5%
Minimum Salt Rejection: 99.0%
Single Element Recovery: 15%
Exterior: Hard Shell Fiberglass
Active Area: 94 sq. ft.
Membrane Type:
Polyamide Thin-Film
Composite

Permeate flow and salt rejection based: 2,000 ppm NaCl feed stream, 77°F, 15% recovery, pH 8, 125 psig.

Operating Limits for LC LE PRO-4040

Maximum Operating Temperature: 113°F (45°C)
Maximum Operating Pressure: 600 psig (41 bar)
Maximum Pressure Drop: 15 psig (1 bar)
Maximum Feed Flow Rate: 16 gpm (3.6m³/h)
pH Range, Continuous Operation*: 2-11
pH Range, Short-Term Cleaning**: 1-13
Maximum Feed Silt Density Index: SDI 5
Fere Clorine Tolerance***: <0.1ppm

*Maximum temperature for continuous operation above pH 10 is 95°F
**Refer to cleaning guidelines.
***Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure. Since oxidation damage is not covered under warranty, Dow recommends removing residual free chlorine by pretreatment prior to membrane exposure.


Key Features and Benefits of DuPont LC LE PRO-4040 (DOW LC LE-4040) Low Pressure Membrane Element

  • LC LE PRO-4040 delivers high quality water at low pressure at harsh water conditions, using DuPont’s innovative, proprietary technology for low energy applications.
  • Industry leading active area (94 sqft) which provides less fouling due to lower operating flux while still achieving higher flow.
  • Offers high salt rejection at low pressure in harsh water conditions.
  • Provides most effective cleaning performance, robustness and durability due to its widest cleaning pH range (1 – 13) and chemical tolerance.

Key Applications for FilmTec LC LE PRO -4040 Commercial RO Membranes:

  • Light industrial applications requiring good permeate quality.
  • Harsh feed water condition.
  • Drinking water – Refilling stations, Bottling plants, Hotels, Schools, Institutions etc.

Physical Dimensions of DOW FilmTec LC LE PRO-4040

INCHES (MM)
A 40.0 (1,016)
B 1.05 (26.7)
C 0.75 (19)
D 3.9 (99)

LC LE PRO-4040 fits nominal 4x40 size pressure vessels.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 43929320823

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Legal_Alien
Fort Morgan, US
★★★★★ 5
Very comfortable. On the soft side.
Size: Queen / Standard, Color: White
Soft, but not too soft. I would actually give 4.5 stars. The pillow is a bit too long and bulky, wish it had a bit more support, but overall, great purchase considering the price. Hopefully it doesn't degrade after washing.
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Reviewed in the United States on May 24, 2026
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Bee-Bee
Bozeman, US
★★★★★ 5
Excellent pillows that are worth the cost
Size: Queen / Standard, Color: White
These are wonderful. Completely relieved my back pain the first night I slept on them -– I put one underneath my back as I slept, and a weeklong terrible pain vanished overnight. Felt like sleeping on a cloud. As others have noted, they are neither too soft nor too firm…they’re really just right, and I think would make great guest room pillows since everyone would like them. These were definitely worth the money.
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Reviewed in the United States on June 5, 2026
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JBaranow
Lake Worth, US
★★★★★ 5
Great , fluffy pillows
Size: Queen / Standard, Color: White
They came compressed into a small roll so I was wondering how they would do. BUT they fluffed up to incredible size and comfy feel. I am impressed so far!
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Reviewed in the United States on May 29, 2026
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Carol
Fort Morgan, US
★★★★★ 5
Pillow comfort and quality
Size: Queen / Standard, Color: White
Bought this for my husband. He is very happy with it. It is well constructed. He doesn’t like too firm or too soft. It meets those requirements. Very reasonably priced. I have bought very expensive pillows that aren’t even comfortable!
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Reviewed in the United States on May 25, 2026
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Jesse Raya
Phoenix, US
★★★★★ 4
Pretty good.
Size: Queen / Standard, Color: White
Me and my fiancé have been going through a lot of pillows, trying to find the right ones. We go to this local hotel to unwind and use the whirlpool sometimes. Their pillows are immaculate. So I starting looking at “Hotel Pillows”. These are not the same as the hotel pillows, not even close tbh, but they are the best ones I’ve bought so far. They are comfy from day one. I was worried when opening the box and seeing that they had the same cover on them as others I bought before, but they were not the same. Pretty comfortable, and less neck pain than any of the other ones. My house is like the house of pillows and I am finally going to start getting rid of the old ones. Maybe we’ll find some down pillows to put on our registry, but until then, these are staying on my bed.
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Reviewed in the United States on May 29, 2026

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