SKU: 31995357459

4"x40" | 2,400 GPD | Fiber Wrapped | DOW FilmTec RO Membrane | Replaces BW30-4040 & LC HR-4040

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Description

4"x40" | 2,400 GPD | Fiber Wrapped | DOW FilmTec RO Membrane | Replaces BW30-4040 & LC HR-4040DuPont FILMTEC BW30 PRO 4040 Brackish Water Reverse Osmosis Membrane Element (Direct Replacement for DOW FilmTec BW30 4040 & LC HR 4040 ) Fiberglassed Large Commercial Elements for Challenging Water Conditions DuPont FILMTEC BW30 PRO 4040 (formerly DOW FIlmtec BW30 4040) membrane elements are an industry standard for reliable operation and production of high quality water in light industrial and drinking water applications. This element features the



DuPont FILMTEC™ BW30 PRO-4040 Brackish Water Reverse Osmosis Membrane Element (Direct Replacement for DOW FilmTec BW30-4040 & LC HR-4040 )

Fiberglassed Large Commercial Elements for Challenging Water Conditions

DuPont FILMTEC BW30 PRO-4040 (formerly DOW FIlmtec BW30-4040) membrane elements are an industry standard for reliable operation and production of high quality water in light industrial and drinking water applications. This element features the fouling resistance membrane chemistry (made in USA) and thicker feed spacer to lessen the impact of fouling in harsh water conditions as well as a fiberglassed shell, which is recommended for systems with multiple-element housings containing three or more membranes, as they are designed to withstand higher pressure drops. For the most effective cleaning, the element may be cleaned over a wide pH range (pH 1 – 13).


FilmTec™ Brackish Water Reverse Osmosis 4" Elements can separate salts from water and are produced with an automated fabrication process that ensures precision, consistency, and reliability. They are ideal for use in medium-sized water treatment system that produce less than approximately 10 gpm (2300 L/h) of permeate. Our 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.

Specifications for FilmTec BW30 PRO-4040

FilmTec Product: BW30 PRO-4040
Replaces Product: BW30-4040
LC HR-4040
80783
343771
343770
FilmTec Part Number: 12080524
Size (Approximate): 4" Dia. x 40"L
Flow Rate: 2,600 gpd (9.8 m³/d)
Applied Pressure: 225 psig (15.5 bar)
Stabilized Salt Rejection: 99.7%
Minimum Salt Rejection: 99.5%
Single Element Recovery: 15%
Exterior: Hard Shell Fiberglass
Feed Spacer: 34 mil
Membrane Type:
Polyamide Thin-Film
Composite

Permeate flow and salt rejection based on the following test conditions: 2,000 ppm NaCl and 225 psig (15.5 bar), pH 8, 77°F (25°C) and 15% recovery.

Operating Limits for BW30 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.


DOW FilmTec vs DuPont FilmTec & Membrane Compatibility Notes:

  • DowDuPont merger was completed in 2017 and FilmTec Corporation was moved to DuPont. DOW Water Solutions and DOW FilmTec Membranes are now DuPont Water Solutions and DuPont FilmTec Membranes.

  • FilmTecMembranes BW30-4040 and LC HR-4040 were discontinued by DuPont in 2022 and are replaced by FilmTec BW30 PRO-4040 which is the direct replacement with superior performance specifications.

Key Features and Benefits of DuPont FilmTec BW30 Commercial RO Membranes

  • Delivers consistent water quality and higher rejection and flow than previous generation FilmTec™ BW30 product for good water quality
  • Based on historical FilmTec™ BW30 industry-standard RO membrane with decades of proven performance
  • Outstanding durability resulting in stable, long-term performance and sustainable water solutions
  • Enhanced fouling protection
  • Dry elements achieve quick stabilization
  • High flux results in high yields
  • Durable with good cleanability for long element life
  • Thick feed spacer minimizes the impact of fouling
  • Fiberglassed hard shell to withstand higher pressure drops
  • FilmTec performance and quality

Common Applications for FilmTec BW30 PRO-4040 Commercial RO Membranes:

  • Commercial water treatment systems
  • Food service
  • Medical and research institutions
  • Hospitality industry
  • Industrial Water Demineralization
  • Production of Municipal Water
  • Water Reuse
  • Commercial Water Treatment Systems

Physical Dimensions of DuPont FilmTec BW30 PRO-4040

INCHES (MM)
A 40.0 (1,016)
B 1.05 (27)
C 0.75 (19)
D 3.9 (99)

BW30 PRO-4040 has identical dimensions as BW30-4040 & LC HR-4040 and 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: 31995357459

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MBR
Birmingham, US
★★★★★ 5
Great quality
Color: Rustic Brwon, Size: 16in
Hassle but they work great. I love the color, the thickness and quality. They do have some weight but in my opinion, I prefer that. Right now the four shelves are holding up my WiFi routers and remotes. Will buy again
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Reviewed in the United States on May 4, 2026
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Maxisss
Chelsea, US
★★★★★ 5
Good quality shelves
Color: Walnut, Size: 24in, Color: Walnut, Size: 24in
These shelves are gorgeous in person. Yes, they're darker than the listing pics, but I actually prefer it. The grain is beautiful, they came well-packed, and mounting them was no trouble at all. Now I've got display space that feels both stylish and practical. Definitely worth it!
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Reviewed in the United States on February 9, 2026
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Laoneil1004@gmail
New York, US
★★★★★ 5
AWESOME
Color: Rustic Brwon, Size: 16in
EASY INSTALL, I WILL BUY MANY MORE
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Reviewed in the United States on May 7, 2026
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Louis G
Pawtucket, US
★★★★★ 5
Easy to install, very tough!
Color: White, Size: 16in, Color: White, Size: 16in
Seriously, scoring these shelf stands for $30 feels like an absolute steal! Four chunky wood boards with metal T-brackets that actually feel substantial - way sturdier than those flimsy IKEA ones I used to have. My old cheapo stands warped after half a year, but these hold up like a champ - I've got like 15 heavy textbooks stacked on them right now. Love the little details too: rounded edges so you won't scrape your hands, and rubber grip strips on the bottom. They look legit fancy in my living room as bookshelves and even class up my kitchen herb garden. My friend thought they were some high-end designer furniture! Honestly, the craftsmanship at this price puts my old $60 wooden shelves to shame. Already told my DIY group chat about these - trust me, you can't go wrong!
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Reviewed in the United States on March 13, 2025
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Chad Collins
Port Orchard, US
★★★★★ 4
Great look. Sturdy.
Color: Rustic Brwon, Size: 16in
Great look if you can get it installed. The sticker paper mounting guides rip so easy so he careful!
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Reviewed in the United States on October 4, 2025

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