SKU: 2731307057

4" x 40" Nanofiltration Membrane | NF 50| 50% Salt Rejection

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Description

4" x 40" Nanofiltration Membrane | NF 50| 50% Salt Rejection4" x 40" Nanofiltration Membrane NF5 50% Salt Rejection 97% Hardness Rejection NF5 spiral wound nanofiltration elements are ideal for removing a high percentage of TOC and THM precursors with medium to high salt passage and medium hardness passage. NF5 membrane elements are an ideal choice for surface water and groundwater where good organic removal is desired with partial softening. AMI NF Membranes are in their ISO 9001: 2015 Certified Facility and


4" x 40" Nanofiltration Membrane | NF5 - 50% Salt Rejection | 97% Hardness Rejection


NF5 spiral wound nanofiltration elements are ideal for removing a high percentage of TOC and THM precursors with medium to high salt passage and medium hardness passage. NF5 membrane elements are an ideal choice for surface water and groundwater where good organic removal is desired with partial softening.

AMI NF Membranes are in their ISO 9001:2015 Certified Facility and are 100% Quality and Performance Tested.


Features of Applied Membranes Nanofiltration Membranes:

  • 50% Average Ion Rejection
  • >97% Hardness Rejection
  • High flux results in high yields
  • Low energy usage reduces power consumption and cost
  • Durable with good cleanability for long element life
  • Manufactured in our ISO 9001:2015 Certified Facilities
  • 100% Performance and Quality Tested
  • Backed by our Experienced Technical Support Staff
  • High Quality for Consistent and Reliable Performance
  • Uses the most advanced membrane film technology and manufacturing processes
  • Standard dimensions to fit in commonly available housings

M-N4040A5 Specifications

AMI Part Number: M-N4040A5
Membrane Size (Nominal): 4x40
Membrane Dimensions: 3.9"Dia. x 40"L
Flow Rate: 2,000 GPD (7,570 LPD)
Test Pressure: 150 psi (1 MPa)
Average Salt Rejection (NaCl): 50%
Average Hardness Rejection (MgSO4): 97% +
For Housing: Standard 4" x 40"
Outer Wrap: Tape Wrapped
Membrane Type: NF5 Nanofiltration
Element Type: Spiral Wound
Feed Water Test Temperature: 77°F (25°C)
Single Element Recovery: 15%
Chlorine Tolerance: < 0.1
Feed water pH Range: 4-11
End Style: Male PWT (Stinger Style)
Can Replace: DuPont FilmTec NF270-4040
Manufacturer: Applied Membranes, Inc.
Country of Manufacture: United States (USA)

Note: Performance specifications based on 2,000 mg/l magnesium sulfate, 150 psi (1 MPa) applied pressure, 77ºF (25ºC) feed water temperature, and the recovery listed in the table above. Element permeate flow may vary ± 20%. Permeate flow rates for feed streams other than water will vary.

Applications for Nanofiltration Membrane Elements:

  • Municipal Drinking Water
  • Partial Water Softening
  • Food and Beverage
  • Pharmaceutical

Physical Dimensions of M-N4040A5:

Total Length (L):

40 In. (101.6 cm)

Membrane Length (I):

38 In. (96 cm)

Diameter (D):

3.9 In. (9.9 cm)

PWT (P):

0.75 In. (1.9 cm)


Replacement Compatibility for AMI 4 X 40 NF MEMBRANES

Applied Membranes M-N4040A5 membrane elements fit industry-standard 4040 membrane housing pressure vessels and can be used as direct replacement for many industry-standard 4x40 size spiral wound nanofiltration elements with 3/4" male product water tubes ("stinger style"). These include DuPont DOW FilmTec NF270-4040.

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]
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SKU: 2731307057

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Size: 19 Ounce (Pack of 1)
I absolutely love this CeraVe Moisturizing Cream! It keeps my skin soft, smooth, and well-hydrated all day long. I use it on both my face and body, and it doesn’t feel greasy at all. It’s very gentle and perfect even for sensitive skin. I also like that it has no strong scent. A little goes a long way, and the size is great for the price. I highly recommend this product to anyone looking for a reliable daily moisturizer!
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Reviewed in the United States on April 17, 2026
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Keïla Judith Jean
Boise, US
★★★★★ 5
Excellent Daily Moisturizer
Size: 8 Ounce
I love CeraVe Moisturizing Cream! It provides long-lasting hydration without feeling greasy or heavy. It works great on both my face and body, leaving my skin soft, smooth, and healthy-looking. The formula is gentle, absorbs well, and is perfect for daily use, even on sensitive skin. Great quality and excellent value for the price. I highly recommend it!”
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Reviewed in the United States on May 29, 2026
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Amazon Customer
Houston, US
★★★★★ 5
So Far, Really Good for Dry and Sensitive Skin
Size: 8 Ounce, Size: 8 Ounce
I’ve only been using this moisturizer for about 2 weeks, but so far I really like it. It keeps my skin feeling hydrated throughout the day without feeling greasy or heavy. The texture is smooth, absorbs nicely, and doesn’t irritate my skin at all. I also noticed my skin feels softer and less dry since I started using it. It’s simple, gentle, and works well for everyday use, especially if you have sensitive skin. So far I haven’t experienced any breakouts or strong fragrance issues, which I appreciate. Too early to say long-term results, but my first impression has been very positive and I would buy it again.
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Reviewed in the United States on May 10, 2026
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Lesley
Draper, US
★★★★★ 5
Switched from luxury brands and never looked back!
Size: 19 Ounce (Pack of 1)
I used to spend way too much on high end body moisturizers thinking the price meant better results. Tried CeraVe on a whim and realized I was paying for packaging and fragrance this whole time. This does more for my skin than anything I used before. I use it daily all over my body after showering and my skin stays soft the entire day. No irritation ever. The formula is so gentle that I forget I'm even wearing anything. No fragrance, no stinging, no breakouts. Just clean hydration. If you have sensitive skin and you're nervous about trying something new, this is about as safe as it gets. The 19 oz tub lasts a long time even with daily full body use. Ceramides and hyaluronic acid at this price point is honestly ridiculous value. Save your money on the luxury stuff and just get this.
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Reviewed in the United States on April 9, 2026
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DadBuysStuffTV
Battle Creek, US
★★★★★ 4
At this rate, I'm leaving this to my kids in my will
Size: 19 Ounce (Pack of 1)
Ten months in and I have barely made a dent in this tub. I am genuinely starting to consider my options — mixing it into smoothies, using it as a cooking fat, applying it to every surface in the house. Something has to be done because at the current rate of consumption this container will outlive me. In all seriousness, the value proposition here is almost absurd. CeraVe Moisturizing Cream is a legitimately great product — dermatologist recommended, ceramides, hyaluronic acid, fragrance free, non-comedogenic, works on face and body, gentle enough for sensitive skin. It does everything a moisturizer should do without irritating your skin or smelling like you bathed in a candle. The 19oz tub is the right call if you actually plan to use moisturizer regularly. A little goes a long way, which is both the best and most frustrating thing about it. Best because you're getting incredible value per ounce. Frustrating because you will be looking at this same tub for the foreseeable future with no end in sight. Great product, generational quantity. Buy it once, pass it down. One star deducted because I now have to figure out what to do with the remaining 18.5 ounces.
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Reviewed in the United States on May 18, 2026

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