SKU: 98622282789

2.5"x40" | 1000 GPD | Tape Wrapped | DuPont DOW FilmTec RO Membrane (Replaces TW30-2540)

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Description

2.5"x40" | 1000 GPD | Tape Wrapped | DuPont DOW FilmTec RO Membrane (Replaces TW30-2540)DUPONT FILMTEC TW30 PRO 2540 Commercial Reverse Osmosis Membrane Element Direct Replacement for FilmTec TW30 2540, which is now obsolete. DUPONT FILMTEC (Formerly DOW FilmTec) TW30 PRO 2540 Elements are the industry standard for reliable operation and production of the highest quality water in commercial applications. DuPont DOW FILMTEC TW30 PRO 2540 elements are tape wrappedbuilt with the same high quality membranes and materials of construction as




DUPONT FILMTEC™  TW30 PRO-2540 Commercial Reverse Osmosis Membrane Element

 Direct Replacement for FilmTec TW30-2540, which is now obsolete. 



DUPONT FILMTEC (Formerly DOW FilmTec) TW30 PRO-2540 Elements are the industry standard for reliable operation and production of the highest quality water in commercial applications. DuPont DOW FILMTEC TW30 PRO-2540 elements are tape-wrapped—built with the same high quality membranes and materials of construction as industrial elements, except for the hard outer shell, and are more economical for commercial systems with one or two elements per housing.



DuPont FILMTEC Brackish Water Reverse Osmosis Elements can separate salts from water and are produced with an automated fabrication process for precision, consistency, and reliability. DOW 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.



DuPont FILMTEC TW30 PRO-2540 is the direct replacement for TW30-2540 which has been discontinued by the manufacturer.

 

       

 

  



Specifications for TW30 PRO-2540

 

  


FilmTec Product:

TW30 PRO-2540
FilmTec Part Number: 12081019


Replaces Products:

TW30-2540, 80643
Size (Nominal): 2.5" Dia. x 40"L


Flow Rate:

1,000 gpd (3.7m³/d)


Applied Pressure:

225 psig (15.5 bar)


Stabilized Salt Rejection:

99.7%
Minimum Salt Rejection: 99.5%


Single Element Recovery:

15%


Exterior:

Tape-Wrapped


Membrane Type:


 

Polyamide Thin-Film


Composite
 

  

Permeate flow and salt rejection based:  2,000 ppm NaCl feed stream, 77°F, 15% recovery, 225 psig.


 



Operating Limits for TW30 PRO-4040

 

  


Maximum Operating Temperature:

113°F (45°C)


Maximum Operating Pressure:

600 psig (41 bar)


Maximum Pressure Drop:

13 psig (0.9 bar)


pH Range, Continuous Operation*:

2-11


pH Range, Short-Term Cleaning**:

1-13


Maximum Feed Silt Density Index:

5


Free Chlorine 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.



Benefits of FilmTec Commercial RO Membranes



  • Reverse Osmosis water treatment removes up to 99.7% of total dissolved solids from water.
  • Delivers consistent water quality and higher rejection and flow than previous generation FilmTec™ TW30 product
  • Based on historical FilmTec™ TW30 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



Common Applications for FilmTec TW30 PRO-4040 Commercial RO Membranes:



  • Commercial Water Treatment Systems


  • Food Service
  • Medical and Research Institutions


  • Hospitality Industry
  • Light industrial & Drinking water applications requiring stringent permeate quality
  • Harsh feed water conditions



Physical Dimensions of DOW FilmTec TW30 PRO-2540

 
 

 INCHES (MM)
A

40.0 (1,016)
B

1.19 (30.2)
C

0.75 (19)
D

2.4 (61)
 

  

TW30 PRO-2540 fits nominal 2.5x40 size pressure vessels.

Shipping Notes
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  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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]
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SKU: 98622282789

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Theresa
Belleville, US
★★★★★ 4
No show but stays on
Size: Medium, Color: (014) Halo Gray / Halo Gray / Castlerock
I wear these socks daily. They truly don’t show with my workout shoes or with hey dudes. But the best thing about them is that they actually stay on your foot. I work out hard and I don’t ever have to pull them up. I do wish they were just a little bit thicker than they are, but they are definitely a product I will buy again.
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Reviewed in the United States on May 22, 2026
N
Verified Purchase
no body!
Chelsea, US
★★★★★ 5
Perfect fit
Size: Large, Color: (100) White / White / Black
Durable and comfortable. Size works well. Very soft with nice thickness for training. Fairly long lasting
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
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Verified Purchase
Quick Reviews
Chelsea, US
★★★★★ 5
Post-COVID Sock Hunt: Finally a Win
Size: Medium, Color: (001) Black / Black / White
Ever since COVID, I haven’t been able to find a pair of socks that hold up for more than a few months. Brands like UA, Adidas, and others seem to have cut corners—likely in response to inflation—by downgrading materials and labor rather than raising prices. The result? Socks that wear thin, rip easily, or lose shape fast. These, however, have been a pleasant surprise. I’ve been wearing them for a few weeks and so far, they’re holding strong. You can tell some cost-saving measures were still made—certain areas feel slightly thinner—but overall, the construction is solid. A key win: they stay on. These are ankle socks (not “no-shows”), and they hug the ankle securely. That’s a huge plus in a world where most post-COVID no-shows slide off halfway through the day. We may never get back to the pre-COVID quality standards without paying a premium, but for now, these are a reliable choice. Ratings: • No slipping: 10/10 • Price: 7/10 • Durability (so far): No pilling or loose threads — promising start.
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Reviewed in the United States on March 24, 2025
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Amazon Customer
Phoenix, US
★★★★★ 5
Great Quality and Stylish
Size: Large, Color: (001) Black / Black / White
Exactly what I was looking for. I don’t like socks that are no-show that your ankles rub on the shoe. These are taller than that but shorter than socks that go up and over the ankle. They’re comfortable, good quality, and pretty thick. They’re form fitting m, but not compression. I dint like compression socks, and these are tight, but not too tight.
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Reviewed in the United States on June 5, 2025
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Eric
Carnegie, US
★★★★★ 5
Affordable and good quality socks
Size: Medium, Color: (001) Black / Black / White
Good quality!
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Reviewed in the United States on May 9, 2026

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