SKU: 63471191543

4" x 40" | CTA Commercial Reverse Osmosis RO Membrane | Chlorine Tolerant | Applied Membranes

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Description

4" x 40" | CTA Commercial Reverse Osmosis RO Membrane | Chlorine Tolerant | Applied Membranes4" x 40" CTA Chlorine Tolerant Reverse Osmosis Membrane for Commercial RO System Applied Membranes (AMI) Commercial CTA RO Membranes Remove up to 96% of total dissolved solids and feature a Chlorine Tolerance of 0. 3 to 0. 5 ppm. 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


4" x 40" CTA Chlorine Tolerant Reverse Osmosis Membrane for Commercial RO System

Applied Membranes (AMI) Commercial CTA RO Membranes Remove up to 96% of total dissolved solids and feature a Chlorine Tolerance of 0.3 to 0.5 ppm.

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 small commercial RO systems. AMI Small Commercial CTA RO Membranes are constructed of CTA (Cellulose Triacetate) 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.

Features of Applied Membranes Commercial CTA RO Membranes

  • Chlorine Tolerant
  • 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
  • Standard dimensions to fit in commonly available housings

Specifications for M-C4040A

Part Number: M-C4040A
Membrane Size (Nominal): 4 x 40
Membrane Dimensions: 3.9"Dia. x 40"L
Flow Rate: 1,000 GPD (3,785 LPD)
Applied Pressure: 225 psi (1.6 MPa)
Stabilized Salt Rejection: 96%
For Housing: Standard 4" x 40"
Outer Wrap: Tape Wrapped
Membrane Sheet: CTA (Cellulose Triacetate)
Element Type: Spiral Wound
Feed Water Test Temperature: 77°F (25°C)
Single Element Recovery: 15%
Chlorine Tolerance: 0.3-0.5 ppm
(1 ppm maximum)
Feed water pH Range: 4-6 (continuous)
Cleaning pH Range: 3-8 (30 minutes)
Maximum Operating Pressure: 300 psig (2.1 MPa)
Maximum Operating Temperature: 104°F (40°C)
Maximum Feed Water Turbidity: 1 NTU
Maximum Feed Water SDI (15 min): 4
Maximum Pressure Drop: 13 psig (0.9 bar)
Maximum Feed Flow: 17 gpm
Minimum Brine to Feed Flow Ratio: 5:1
End Style: Male PWT (Stinger Style)
Manufacturer: Applied Membranes, Inc.
Country of Manufacture: United States (USA)

Note: Performance specifications based on 500 ppm tap water, 225 psi (1.6 MPa) applied pressure, 77ºF (25ºC) feed water temperature, and the recovery listed in the table above. Element permeate flow may vary ± 20%.

Applications for AMI Commercial RO CTA Membranes

  • Restaurants
  • 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
  • Wide Variety of Other Applications

Physical Dimensions of M-C4040A:

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 CTA RO MEMBRANES

Applied Membranes M-C4040A membrane elements fit industry-standard 4x40 membrane housing pressure vessels and can be used as direct replacement for many industry-standard 4x40 size CTA RO elements with 3/4" male product water tubes ("stinger style").

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: 63471191543

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4.3 ★★★★★
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Verified Purchase
#1 Ford
West Palm Beach, US
★★★★★ 5
Kilmat Car Sound Deadening Mats
Style: 50 mil 25 SqFt
Easy to install in a vehicle! Helps keep the heat out as well as keeping it quieter inside my car. Self sticking to the inside of the roof without strong smelling adhesives. The quality of these pieces work very well in my vehicle!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
J
Verified Purchase
Jonathan Robledo
Birmingham, US
★★★★★ 5
Excellent Sound Deadening Material!
Style: 10 SqFt, Style: 10 SqFt
I installed Kilmat Sound Deadening in my truck, and I’m extremely impressed with the results. The material is thick, pliable, and easy to cut to fit doors, floor panels. It sticks very well to metal surfaces and doesn’t peel, even after heating it slightly to make it more flexible. After installation, I immediately noticed a reduction in road noise and vibrations. Worth the money!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
J
Verified Purchase
Jare
Pawtucket, US
★★★★★ 5
A Must Have For Car Restorations!
Style: 80 mil 36 sqft, Style: 80 mil 36 sqft
I have been installing this matting in my 74 Datsun 260Z restore and very pleased with the ease of application and overall quality. My car has bedliner coating inside and this stuff sticks extremely well and is easy to trim and shape as well. I have just started installing it and using the rollers to work it in place but I can already tell a difference with just the little bit I have added....has reduced the resonance in the metal already. It's not a fast process but know it will be very rewarding once complete.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
M
Verified Purchase
Mike
Battle Creek, US
★★★★★ 5
Great sound mat for the price!
Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
This is a good product. Many people go with KILMAT because of the value to price point. I did as well. When you clean the surface (in my case it was all painted metal) this stuff sticks very well. I do recommend you use a seam roller of some type, I used Lumiteco 3 piece roller set. This will help with adhesion and mostly flatten the overlapped edges. It also helps you see where you have rolled as it leaves little grooves. The difference when we had no sound mats and after was very impressive. We haven't finished our install yet and it is quieter than when we had an interior in the van. There are thicker mats available in other brands, but this will work great for our van build, but this helps keep the weight down. It is quality material, just be careful when you are removing the backing, the edge of the foil face can cut you. I suggest you layout where you are installing the mat and cut to fit. From what I have read, you don't need to cover every inch in the vehicle, just spot install for a big difference. I chose to cover most surfaces to help keep sound out when we are sleeping in the van. We haven't finished putting the van yet, but we have driven it around and been very satisfied with this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
P
Verified Purchase
Paul
Fort Morgan, US
★★★★★ 5
Excellent sound deadening mats
Style: 80 mil 36 sqft, Style: 80 mil 36 sqft
Purchased these for a 2020 Lexus RX350 due to the hollow sound of the car doors when shutting. They sounded cheap. The mats are super sticky and I applied them when the doors were hot from sitting in the sun. They alubutyl sticks like crazy and the end result was perfect. Now I have solid sounding doors. Good quality product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026

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