4"x40" | 2,500 GPD | Low Energy| Fiber Wrapped |  DuPont FilmTec (LC LE PRO-4040 Replaces DOW LC LE-4040)
SKU: 43929320823

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

Sale price$156.28 Regular price$173.64
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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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Omaha, US
★★★★★ 5
Great Quality Men's Wallet
Color: 172-Brown-no zipper, Color: 172-Brown-no zipper
Great packaging. The wallet is very nice quality, soft feel yet strong. There are adequate inserts and pockets to hold cards, cash and even a picture. Gifting this to my husband for father's day.
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Reviewed in the United States on May 18, 2026
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Michael
Dallas, US
★★★★★ 4
Great but too thick for me...
Color: 172-Brown-no zipper
It is my fault for not understanding how thick this wallet is. Great wallet, lots of space and looks great. It is just a bit big for my back pocket in jeans.
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Reviewed in the United States on March 19, 2026
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Kyle Miller
Louisville, US
★★★★★ 5
A great wallet with a whole lot of room for card🤘
Color: 172-Black
It definitely holds a lot of cards as an OTR truck driver I have a lot of different reward cards different payment cards different ID cards it holds all the cards very well for the price it's a little thick but that's thanks to how many cards I have if I didn't have so many cards it wouldn't be so thick it's very easily organized to have conveniently located cards that you use the most at the front. Beautiful black leather and it definitely can take a beating and hold the cards snugly
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Reviewed in the United States on April 15, 2026
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Mitch M.
Charlottesville, US
★★★★★ 5
Really nice wallet really nice
Color: 172-Black
Well-made, nice real Leather holds all my cards. It’s perfect.
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Reviewed in the United States on June 2, 2026
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Amazon Customer
Lexington, US
★★★★★ 5
Elegant , lots of space
Color: 172-Black Stripe
Best wallet ever, I love it !!!!
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Reviewed in the United States on May 12, 2026

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