SKU: 61450459731

4"x40" | 2,400 GPD | Tape Wrapped | DuPont FilmTec RO Membrane (Replaces TW30-4040)

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Description

4"x40" | 2,400 GPD | Tape Wrapped | DuPont FilmTec RO Membrane (Replaces TW30-4040)DUPONT FILMTEC TW30 PRO 4040 Commercial Reverse Osmosis Membrane Element Direct Replacement for FilmTec TW30 4040, which is now obsolete. DUPONT FILMTEC (Formerly DOW FilmTec) TW30 PRO 4040 Elements are the industry standard for reliable operation and production of the highest quality water in commercial applications. This element features the thickest feed spacer (34 mil) available in the industry today to lessen the impact of fouling. DOW FILMTEC


DUPONT FILMTEC™  TW30 PRO-4040 Commercial Reverse Osmosis Membrane Element

 Direct Replacement for FilmTec TW30-4040, which is now obsolete. 

DUPONT FILMTEC (Formerly DOW FilmTec) TW30 PRO-4040 Elements are the industry standard for reliable operation and production of the highest quality water in commercial applications. This element features the thickest feed spacer (34 mil) available in the industry today to lessen the impact of fouling. DOW FILMTEC TW30 PRO-4040 elements are tape-wrapped—built with the same high quality membranes and materials of construction as industrial elements, except for the hard outershell, and are more economical for commercial systems with one or two elements per housing.

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-4040 is the direct replacement for TW30-4040 which has been discontinued by the manufacturer.

 

       

 

  

Specifications for TW30 PRO-4040

 

  
FilmTec Product: TW30 PRO-4040
FilmTec Part Number: 12080472
Replaces Products: TW30-4040, 80610
Size (Approximate): 4" Dia. x 40"L
Flow Rate: 2,600 gpd (9.8m³/d)
Applied Pressure: 225 psig (15.5 bar)
Stabilized Salt Rejection: 99.7%
Feed Spacer: 34 mil
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)
Maximum Feed Flow Rate: 14 gpm (3.2m³/h)
pH Range, Continuous Operation*: 2-11
pH Range, Short-Term Cleaning**: 1-13
Maximum Feed Silt Density Index: 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.

Benefits of FilmTec Commercial RO Membranes

  • Reverse Osmosis water treatment removes up to 99% of total dissolved solids from water.
  • Thick feed spacer minimizes the impact of fouling
  • High flux results in high yields
  • High rejection provides good water quality
  • FilmTec performance and quality

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

  • Commercial Water Treatment Systems
  • Food Service
  • Medical and Research Institutions
  • Hospitality Industry

Physical Dimensions of DOW FilmTec TW30 PRO-4040

 
 

 INCHES (MM)
A

40.0 (1,016)
B

1.05 (27)
C

0.75 (19)
D

3.9 (99)
 

  

TW30 PRO-4040 fits nominal 4x40 size pressure vessels.

Shipping Notes
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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: 61450459731

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4.1 ★★★★★
Based on 5 reviews
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Product Reviews
K
Verified Purchase
Karen W.
Phoenix, US
★★★★★ 5
Soft and light
Color: A.Orange+Blue+Green
My doxie loves them
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
V
Verified Purchase
Vanessa Perez
Houston, US
★★★★★ 5
Durable, fun, and good for aggressive chewers
Color: grass-green
I have bought this toy for my dog twice now, and the first time I purchased it, it quickly became his favorite. Unfortunately, I lost the first one when some other dogs took it down the street while we were playing outside. It was a bit heartbreaking to lose it, but after about two weeks, we managed to find the old one. However, it was in the middle of the street and had been run over several times, resulting in a broken squeaker. Despite its rough condition, it was clear how much my dog loved that toy. When I bought the new one, I was relieved to see that he doesn’t let it out of his sight at all. We have so much fun together, playing with it by throwing it in lakes, sandy areas, and engaging with other dogs. Even after all this rough play, the new toy is still intact. My dog particularly enjoys the squeaker feature, which adds to his excitement during playtime. He is an aggressive chewer, but this toy has proven to be more durable and has lasted us much longer than most of the other toys we've tried. It has definitely become a staple in our playtime routine!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 25, 2025
R
Verified Purchase
Rebecca Wilson
Omaha, US
★★★★★ 5
Great product
Color: grass-green
This is my dogs' new favorite chew toy. They chew them all the time and have held up way better than most other chew toys.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
N
Verified Purchase
Natalie S.
Lake Worth, US
★★★★★ 1
Nope, not for Murphy the alligator hunter! 🐊🙄
Color: grass-green, Color: grass-green
Murphy, our 75 pound lab, loves to chew. We can’t give him anything soft or even anything remotely made for casual play as he chews them to pieces- literally. So when I saw this cute little alligator, with fairly good reviews, I bought it with high expectations. Nope. It didn’t have a chance- It’s in the garbage. ☹️ First I have to comment on the eyes. I don’t know what they are made of, but the “whites” of the eyes pealed off like paint within the first few minutes Murphy had it. He wasn’t even chewing at the eyes; they just pealed off. I can’t imagine that is good for dogs to ingest, but ok, I threw the white pieces away, and gave it back to him. I do have to say that he loved chewing on it- even without adding any kind of treat to it. So we watched him chew at it for about 30-40 minutes without it being dissected into a million different parts. I was impressed.... Until I took it away from him to be played with later.... during this time he was able to tear parts of the mouth (see pictures), and while all pieces are still in tact, I cannot imagine another 30 minutes of him having this in one piece. So, while I’m very aware that Murphy has limited toys to chew on, I will continue my search for indestructible toys for his chewing pleasure.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2021
L
Verified Purchase
lizinia
Port Orchard, US
★★★★★ 4
Cute toy maybe not for aggressive chewers
Color: grass-green
I bought this because I have an 3 1/2 yr old golden doodle. She tears every toy apart within half hour of having it. The only toys she hasn’t is Kong toys. This is a cute toy. She was shredding pieces off the rubber with half hour of chewing it:( I thought it was very similar to the material of Kong toys? She loves chewing it and playing with it but I probably would not buy it for really aggressive large dogs who tear up toys.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026

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