CTA Commercial

AMI Commercial CTA (Cellulose Triacetate) Reverse Osmosis Membranes are suitable for a wide range of commercial and industrial applications and are available in standard sizes up to 4” diameter and 40” length.
AMI reverse osmosis membrane elements are among the finest in the industry. With hundreds of thousands of RO membranes in operation world-wide, AMI Commercial CTA RO Membranes are 100% Quality and Performance Tested in our ISO 9001:2015 Certified Facilities. Each CTA reverse osmosis membrane element meets or exceeds our strict performance requirements before shipping.
For over 40 years we have earned a reputation of delivering consistent, high quality which makes AMI CTA Membranes the natural choice for use in commercial RO water treatment systems.
| Model No. | GPD | LPD | Size (Dia. x Length) | Recovery | Minimum Salt Rejection (%) | Stabilized Rejection |
|---|---|---|---|---|---|---|
| M-C2521A | 117 | 443 | 2.5 x 21 | 8 | 96 | |
| M-C2540A | 250 | 946 | 2.5 x 40 | 15 | 96 | |
| M-C4021A | 350 | 1325 | 4.0 x 21 | 8 | 96 | |
| M-C4040A | 1000 | 3785 | 4.0 x 40 | 15 | 96 |
Performance specifications are based on 500 ppm tap water, 225 psi applied pressure, 77°F feed water temperature, pH 7 to 8 and listed recovery. Element permeate flow may vary ±20%.



- Reverse osmosis membranes remove up to 96% of total dissolved solids.
- Chlorine tolerance of 0.3 to 0.5 ppm.
- CTA RO membranes remove dissolved impurities such as chloride, lead, chromate, fluoride and others.
- High rejection and flow rate
- Manufactured in ISO 9001:2015 certified facilities
- 100% performance and quality tested
- Backed by experienced technical support staff
- High quality for consistent and reliable performance
- Uses advanced membrane film technology and manufacturing processes
- Standard dimensions to fit commonly available housings




- 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
- Wide variety of other applications
- PVC pressure vessel membrane housings
- Stainless steel pressure vessel membrane housings
- Membrane cleaning cartridges
- Membrane cleaning chemicals
- Commercial CTA RO membrane specifications
- Rejection chart for CTA RO membranes
- AMI brand membrane elements brochure
- Membrane storage, disinfection and preservation
- RO membrane temperature and pressure correction
- Comparison of RO, UF, MF, NF membranes
- Membrane warranty
- About reverse osmosis