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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Luna Cherry
Los Angeles, US
★★★★★ 5
Truly indestructible
Size: Large, Color: Blue
They are not kidding, this ball is truly indestructible. I've gotten several for my dogs so they have plenty to share. Two of my dogs are beyond super chewers (bully breeds). One of the balls is missing the section that's glued into most of them, but the structure has still held up. And my dogs LOVE them.
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Reviewed in the United States on May 31, 2026
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Gimmedap
New York, US
★★★★★ 4
Tough STINKY ball
Size: Large, Color: Red
This ball is the only one I've found that my dog can not destroy in seconds. He can chew on it for a few weeks before he works a hole in it. That's the good part. The bad side is the horrible smell! It doesn't seem to bother him, but it is horrible to my nose. It is so awful that I tried soaking it and dish soap and vinegar water overnight to see if I could make it go away. It was a little bit better but still stunk. Anybody got other suggestions on what could make the smell go away?
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Reviewed in the United States on April 12, 2026
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Amazon Customer
Bozeman, US
★★★★★ 5
A good toy for chewers!!
Size: Large, Color: Blue
My dog loves this ball! The best part is that he hasn't destroyed it yet. He's a real chewer and has destroyed several toys since I got him about 6 months ago. The ball is very solid and a the squeak is not annoying. A great toy
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Reviewed in the United States on May 28, 2026
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Devin McKey
Belleville, US
★★★★★ 5
My dog loves it, holds up well
Size: Large, Color: Blue
My German Shepherd absolutely loves this ball! He is a pretty aggressive chewer and it has held up really well, not indestructible but it lasts. We currently have three and he always has one in his mouth.
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Reviewed in the United States on May 8, 2026
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GBG
Lexington, US
★★★★★ 5
Lasted a year with a Great Dane
Size: Large, Color: Red, Size: Large, Color: Red
It lasted an entire year as my Great Dane’s favorite squeaky ball. The only reason it’s failing is because the squeaker no longer works great.
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Reviewed in the United States on May 31, 2026

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