NF9

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AMI® NF9 spiral wound nanofiltration 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 NF9 membrane allows the removal of these compounds at low operating pressures.

AMI membrane elements are among the finest in the industry. With hundreds of thousands of membranes in operation world-wide, we offer these nanofiltration (NF) membrane elements in standard residential and commercial sizes. AMI NF Membranes are Made in the USA in our ISO 9001:2015 Certified Facilities. Each membrane meets or exceeds our strict performance requirements before shipping. For the past 30 years we have earned a reputation of delivering consistent, high quality which makes AMI Nanofiltration Membranes the natural choice for use in water treatment systems.

90% 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

Model No.	Permeate Flow Rate		Size (Dia.”× Length”)	Average Salt Rejection (%)	Average Hardness Rejection (%)
Model No.	gpd	lpd	Size (Dia.”× Length”)	Average Salt Rejection (%)	Average Hardness Rejection (%)
M-N1812A9	36	136	1.75 × 12	90	97 +
M-N2514A9	175	662	2.5 × 14	90	97 +
M-N2521A9	250	946	2.5 × 21	90	97 +
M-N2540A9	600	2271	2.5 × 40	90	97 +
M-N4014A9	450	1703	4.0 × 14	90	97 +
M-N4021A9	800	3028	4.0 × 21	90	97 +
M-N4040A9	2000	7570	4.0 × 40	90	97 +
M-N4040A9D*	2000	7570	4.0 × 40	90	97 +

Note: Also available in FRP wrap (M-NB-)

* D= Flush Style. Replaces Desal 5.

30 mil spacer standard. For 43 mil spacer, add -43 at the end of the model number. Example: M-N2540A9-43.
Note: Performance specifications based on 2000 mg/l magnesium sulfate, 150 psi (1 MPa) applied pressure, 77ºF (25ºC) feed water temperature and 15% recovery. Element permeate flow may vary ± 20%. Permeate flow rates for feed streams other than water will vary.