SKU: 75285253984

4"x40" | 97% Salt Rejection | 2,000 GPD | FilmTec NF90 Element

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Description

4"x40" | 97% Salt Rejection | 2,000 GPD | FilmTec NF90 ElementDOW FILMTEC NF90 4040 Nanofiltration (NF) Membrane Elements for Commercial Systems The DOW FILMTEC NF90 4040 membrane elements provide high productivity performance while removing a high percentage of salts, nitrate, iron and organic compounds such as pesticides, herbicides and THM precursors. The low net driving pressure of the FilmTec NF90 4040 membrane allows the removal of these compounds at low operating pressures. DOW FILMTEC NF90 4040 has a


DOW FILMTEC™ NF90-4040 Nanofiltration (NF) Membrane Elements for Commercial Systems


The DOW FILMTEC NF90-4040 membrane elements provide high productivity performance while removing a high percentage of salts, nitrate, iron and organic compounds such as pesticides, herbicides and THM precursors. The low net driving pressure of the FilmTec NF90-4040 membrane allows the removal of these compounds at low operating pressures. DOW FILMTEC NF90-4040 has a fiberglass outer wrap.

DOW FILMTEC NF90-4040 is FDA – 21 CFR 177.2550; Food and Drug Administration Compliant.

Common Applications for FilmTec NF90-4040 Nanofiltration Elements:

  • Production of Drinking Water
  • Demineralization in Small Commercial Applications

Benefits of DOW FilmTec Commercial NF Membranes

  • High flux results in high yields
  • Low energy usage reduces power consumption and costs
  • Durable with good cleanability for long element life
  • FilmTec performance and quality



Specifications for NF90-4040

FilmTec Product: NF90-4040
FilmTec Part Number: 149983
Size (Approximate): 4" Dia. x 40"L
Flow Rate: 2,000 gpd (7.6 m³/d)
Applied Pressure: 70 psig (4.8 bar)
Stabilized Salt Rejection: >97%
Single Element Recovery: 15%
Exterior: Hard Shell Fiberglass
Membrane Type:
Polyamide Thin-Film
Composite

Permeate flow and salt rejection based: 2,000 ppm MgSO4 feed stream, 77°F, 15% recovery, 70 psig.

Operating Limits for NF90-4040

Maximum Operating Temperature: 113°F (45°C)
Maximum Operating Pressure: 600 psig (41 bar)
Maximum Pressure Drop: 16 psig (0.9 bar)
Maximum Feed Flow Rate: 16 gpm (1.4m³/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.


Related Products for use with NF90-4040

PV4040PWG PVC Membrane Housing Pressure Vessel for 4" x 40" Membrane Element
PV4080PWG PVC Membrane Housing Pressure Vessel for (2) 4"x40" Membrane Elements
PV4040SSAU-316 Stainless Steel Membrane Housing Pressure Vessel for 4" x 40" Membrane Element
PV4080SSAU-316 Stainless Steel Membrane Housing Pressure Vessel for (2) 4" x 40" Membrane Element
PV4040SSAW-316 Stainless Steel End-Clamp-Style Membane Housing Pressure Vessels for 4" x 40" Membrane Elements
PV4080SSAW-316 Stainless Steel End-Clamp-Style Membane Housing Pressure Vessels for (2) 4" x 40" Membrane Elements
PV-IN410 Interconnector Coupler for Installing Multiple Elements in a housing - FilmTec part # 89055. Includes two o-rings.

Physical Dimensions of DOW FilmTec NF90-4040

INCHES (MM)
A

40.0 (1,016)
B

1.05 (27)
C

0.75 (19) OD
D

3.9 (99)

NF90-4040 Fits nominal 4-Inch I.D. pressure vessels.


Shipping Notes
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Exchange/Return Notes
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  • 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: 75285253984

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4.6 ★★★★★
Based on 21 reviews
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S
Verified Purchase
Sally
Birmingham, US
★★★★★ 4
Pup Loves It, Some Other Notes
Color: Orange
We've had this for about six months and my 75 lb, 14-month-old German Shepherd pup LOVES IT. Her favorite is "Crazy Bouncing Mode." In fact, she doesn't care much for the normal mode. She chews it a lot - even drops it in her water bowl at times - and it's still going strong. This is a great purchase. It's nice hands-off entertainment. Do know that it is heavy compared to a normal ball - if your pup likes dropping it on the ground like mine does, it will land with a hard "thud," even with the included sleeve. Hopefully you don't have downstairs neighbors. Also know that the cover that goes over the charging port is removable and your dog may choke on it if they chew it in just the right manner. Definitely only let the pup play with it while supervised. All in all, great toy.
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Reviewed in the United States on February 11, 2026
T
Verified Purchase
Tabs
Fort Morgan, US
★★★★★ 5
Love this set!!!
Size: Medium (2.5"), Style: Fetch Pack 1
I was trying to figure out which of the many different balls this company offers, and I was getting frustrated but then i was SOOOO happy to see they had multiple sets that had multiple of the different balls they offer!! I bought this set and the other set they offer, but this one was my favorite and I think my dogs too! The orange ball works great and bounces just high enough that it doesn’t clear our patio wall, but enough for him to go and jump up to retrieve. But the glow in the dark ball is his favorite! Both me and my pomsky were blown away how we brought the glow in the dark ball outside just as the sun was going down, and when we brought it back inside it was BRIGHT AND GLOWY!!! Even with the sun going down and not much light left!! He loves to play with it in the house after it’s all glowy from the sun. Sometimes we even glow it up under a light inside the house if it’s dark outside, and he will play with it outside in the dark haha he loves it!!! And I think it’s pretty cool too!! All of the balls this company overs are VERY durable! We realized early on that we cannot give our dog regular tennis balls cuz his favorite thing to do is tear the outside fabric off!! So we were trying to figure out what company has the best balls for dogs so they can’t sit there and try to pry them apart, and we found this company!! We have already bought from them about 3 times and all of their balls are durable and bounce how they say they will bounce!! They have the super bouncers and the glow in the dark one and the one with angles that will bounce in different directions and the ones you can throw REALLYY far! Overall, all the balls from this company are very durable, bounce really good, and keep my dog occupied without allowing him to sit there and tear it apart!!! Which i love cuz I do not like when he stops playing with us to sit there and try to take off the fabric, cuz then he could swallow it! So always buy the balls from this company!!! They are the best and most durable!!!! Also plenty soft for your dogs mouth so they can chew on it a bit and it won’t hurt their teeth/gums!
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Reviewed in the United States on July 28, 2024
J
Verified Purchase
Jen C
Draper, US
★★★★★ 5
Good sturdy balls
Size: Medium (2.5"), Style: Fetch Pack 2
My dogs love balls! Unfortunately, they tend to chew them up very quickly. My Belgium Malinois chews on this all the time, and it has held up pretty well. Good option for chewers
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Reviewed in the United States on May 17, 2026
B
Verified Purchase
Baibhav Bhattarai
Los Angeles, US
★★★★★ 5
Fetch Perfection
Size: Medium (2.5"), Style: Fetch Pack 2
If you’re anything like me, fetch is the ultimate game with your furry companion. The Chuckit! Dog Fetch Ball Medley has taken our playtime to the next level with its variety and durability. This 3-pack of medium-sized, ultra-rugged balls is perfect for endless games of fetch without worrying about wear and tear. I love how each ball has a unique texture and color, keeping my dog engaged and excited every time. The medium size is just right for energetic dogs, allowing for long throws and big leaps. Plus, the rugged design means these balls can withstand even the most enthusiastic chewers and rough play sessions, making them a great investment for active pets. However, the vibrant colors can sometimes make them easy to lose in green grass or sandy beaches, but a good game of hide-and-seek with your dog is a small price to pay for such fantastic fetch balls. Additionally, while they’re durable, no ball is completely indestructible, so occasional replacements might be necessary for the most aggressive players. Overall, the Chuckit! Dog Fetch Ball Medley is a must-have for any dog owner looking to enhance their playtime. They’re fun, durable, and keep both you and your dog entertained for hours. A solid 5-star rating for their quality and variety, with a tiny star lost to their occasionally elusive colors.
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Reviewed in the United States on October 23, 2024
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Verified Purchase
Brie
Draper, US
★★★★★ 5
great ball!
Size: Medium (2.5"), Style: Fetch Pack 2
My pitbull LOVES these. She is a power chewer and tough on balls and toys and tends to go through them insanely quick. She is still on her first ball out of this pack and its been at least two months. It is a little small for her mouth but she doesn’t seem to mind, as it has quickly become one of her favorites. Not a loud ball and it doesn’t usually make that wet chewy noise when shes going to town on it which is huge for me😂😂 Safe for my pittie so i’d imagine a smaller dog would be just fine.
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Reviewed in the United States on April 21, 2026

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