NF5

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AMI® 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 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 Membranes are 100% Quality and Performance Tested 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 Membranes the natural choice for use in water treatment systems.

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-N1812A5	36	136	1.75 × 12	50	97 +
M-N2514A5	175	662	2.5 × 14	50	97 +
M-N2521A5	250	946	2.5 × 21	50	97 +
M-N2540A5	600	2271	2.5 × 40	50	97 +
M-N4014A5	450	1703	4.0 × 14	50	97 +
M-N4021A5	800	3028	4.0 × 21	50	97 +
M-N4040A5	2000	7570	4.0 × 40	50	97 +
M-N4040A5D*	2000	7570	4.0 × 40	50	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-N2540A5-43.
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.