SKU: 96583337498

4" x 40" | 2,400 GPD | FRP Wrapped | Commercial Brackish RO Membrane | Applied Membranes

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Description

4" x 40" | 2,400 GPD | FRP Wrapped | Commercial Brackish RO Membrane | Applied Membranes4" x 40" Brackish Water Reverse Osmosis Membrane Fiberglasssed Shell 2,400 GPD BWRO AMI commercial thin film BWRO elements are wrapped in a hard shell of FRP for added strength and to withstand higher pressure drops. AMI commercial brackish water RO membrane elements produce high quality water from tap or brackish water sources in commercial RO systems, and are among the finest in the industry. With hundreds of thousands of membranes in operation in


4" x 40" Brackish Water Reverse Osmosis Membrane | Fiberglasssed Shell | 2,400 GPD BWRO


AMI commercial thin film BWRO elements are wrapped in a hard shell of FRP for added strength and to withstand higher pressure drops. AMI commercial brackish water RO membrane elements produce high quality water from tap or brackish water sources in commercial RO systems, and are among the finest in the industry. With hundreds of thousands of membranes in operation in water filtration systems world-wide, AMI membranes have earned a reputation of delivering consistent, reliable, and long lasting performance, making AMI Membranes the natural choice for use in commercial RO systems. AMI Commercial Brackish Water Reverse Osmosis Membranes are constructed of tap water TFC (thin film composite) membrane material and fit standard PVC and Stainless Steel RO Membrane Housings.

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

Specifications for M-B4040A

AMI Part Number: M-B4040A
Membrane Size (Nominal): 4 x 40
Membrane Dimensions: 3.9"Dia. x 40"L
Flow Rate: 2,400 GPD (9,084)
Applied Pressure: 225 psi (1.6 MPa)
Stabilized Salt Rejection: 99.5%
Outer Wrap: Fiberglassed Shell
Membrane Type: Tap or Brackish Water
Membrane Sheet: TFC (Thin Film Composite)
Element Type: Spiral Wound
For Housing: Standard 4" x 40"
Feed Water Test Temperature: 77°F (25°C)
Single Element Recovery: 15%
Chlorine Tolerance: 0
Feed water pH Range: 2-11
Manufacturer: Applied Membranes, Inc.
Country of Manufacture: United States (USA)
Can Replace:






DOW FilmTec BW30-4040
DuPont BW30-4040, 80783
GE Desal AG4040FM, AG-90, 411-HF(PA)
CSM RE4040-BN
Toray TM710
Axeon HR3-4040

Note: Performance specifications based on 2,000 mg/l sodium chloride, 225 psi (1.6 MPa) applied pressure, 77ºF (25ºC) feed water temperature, pH 8 and the recovery listed in the table above. Element permeate flow may vary ± 20%.

Features of AMI Brackish Water RO Membranes

  • High Rejection & Flow Rate
  • Hard fiberglass exterior provides added strength and withstands higher pressure drops than tape-wrapped elements.
  • 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

Applications for AMI Commercial BWRO Membranes

  • Restaurants
  • Aquariums
  • Whole House (Residential)
  • Office
  • Institutions
  • Hotels
  • Hospitals
  • Disaster Relief
  • Spot Free Rinse/Car Wash
  • Labs
  • Pharmaceutical
  • Humidification
  • Misting
  • Manufacturing
  • Rinse Water
  • Bottled Water
  • Water stores
  • Beverage
  • Food Processing
  • Ice Makers
  • Commercial Water Treatment
  • Ice Makers
  • Tap Water
  • Brackish Water
  • Wide Variety of Other Applications

Physical Dimensions of M-B4040A:

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 RO MEMBRANES

Applied Membranes M-B4040A FRP wrapped membrane elements can be used as direct replacement for many industry-standard 4x40 size RO elements with 3/4" male product water tubes ("stinger style") which are rated at 225psi. These include:

  • DuPont DOW FilmTec BW30-4040 (80783)
  • GE Desal AG4040FM (1206761), AG4040FF, AG-90 (3056665), 411-HF(PA) (1153192)
  • CSM RE4040-BN
  • Toray TM710
  • Axeon HR3-4040 (200373).

If you do not see your system listed or wish to learn more about compatibility, please contact us. Our certified water treatment experts will be happy to discuss your application. To ensure prompt and accurate information, please include as much information about your system as possible, such as: model, manufacturer, model of membranes being replaced, any available. product manuals or literature associated with your system, and photographs of your system or membranes.

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: 96583337498

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Pawtucket, US
★★★★★ 5
Liquid silk
I am obsessed with this product! I originally bought it when I was in Paris and I loved it. It is the smoothest silkiest texture. A small amount goes along way. I put it on at night as part of my bedtime routine and the changes I have noticed my skin are amazing. I think the price point is good not too expensive and it lasts a long time it hydrates my face super well has a slight scent, but very pleasant. No greasiness.
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Reviewed in the United States on August 21, 2025
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Madison Praino
West Palm Beach, US
★★★★★ 5
Accutane holy grail!!
I’ve been on accutane for 2 months and have used this day and night. My skin has not flaked once and has appeared so hydrated despite taking a very drying medication! It’s very lightweight, non-stick, and quickly absorbs into my skin. I don’t usually write reviews but this is worth while for accutane users!
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Reviewed in the United States on November 17, 2025
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Susan
Birmingham, US
★★★★★ 5
Great product but pricy
I really like this product. It helps with “aged” skin- moisturizing but not oily or heavy feeling. It is pricy though.
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Reviewed in the United States on April 21, 2025
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Judy
Houston, US
★★★★★ 5
Perfect for Glassy Skin
Love the feeling, ease of application, hydration, longevity/ duration, and all-day effect. Would be nice if they cost less, but here we are. Size is perfect for travel. Of course super hydrating products will be a bit sticky to touch, but I shouldn’t be touching my skin anyway. Only pops up when I need to put my face down for a massage or at the chiropractor. Love Avéne!
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Reviewed in the United States on September 12, 2025
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Victor Cisnero Ricardo
Cuba, US
★★★★★ 5
Good
Really good
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Reviewed in the United States on May 24, 2026

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