2025 Nelsen Corporation Catalog - Catalog - Page 188
7 Commercial NRO Numbering Matrix
Reverse Osmosis
NRO NUMBERING MATRIX
Item ID:
NRO- __ - __ ___ ___ __ - ________ - __ - __ __ __ __ __
System Option
F - Floor Stand Unit
S - SIMPLX Unit
W - Wall Mount Unit
Number of Membranes
Membrane Diameter
4 - 4" Membranes
25 - 2-1/2" Membranes
Membrane Length
40 - 40" Long
21 - 21" Long
Membrane Housing
F - FRP Housing (Fiberglass Resin)
S - Stainless Steel Housing
GPD
2500 (1x4x40)
7500 (3x4x40)
15000 (5x4x40)
900 (1x2.5x40)
5000 (2x4x40)
10000 (4x4x40)
20000 (6x4x40)
1800 (2x2.5x40)
Power Options
1 - 110v Power Throughout - NRO 2540 Systems, SIMPLX
2 - 220v Power Throughout - 5 & 6 NRO 440 Membrane Systems, SIMPLX
3 - 220v Pump, 110v Solenoid - 1 to 4 NRO 440 Membrane Systems
Controller Option
R - NRO ROC2 Control Box *Not Available on SIMPLX
C - CHIP Controller
*Not Available with 5/6 membrane
X - No Controller
TDS Monitor Option
T - TDS Monitor
X - No TDS Monitor
* Not Available with ROC
Bladder Tank Option
B - Bladder Tank Control
X - No Tank Control
END OF SIMPLX OPTIONS
Flush Options
A P M X -
Auto Flush
Permeate Flush
Manual Flush
No Flush
*Requires a Controller
*Requires a Controller
Filter Gauge Options
G - Pre & Post Filter Gauge
X - No Filter Gauge
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