Maintain and repair services are still available

For over 30 years, IWG has been a proud supplier of water treatment technology. NPS-A4 is among the extensive list of components that led effectively to IWG’s success.

The NPS-A4 retains the advances in functionality achieved by the NPS-A3, but without the integral carbon filter.

The NPS-A4 incorporates a modular design, allowing many water system product configurations to be developed from common building blocks. Its self-monitoring system scans for a range of fault conditions, which can be reported to a cabin management system through industry-standard data protocols.


Dry Weight:6.2 lbs (2.8 Kg) with support plate
Contains 1.3 lbs of water
Input Voltage:28 VDC. Optional: 115 VAC/400 Hz
Voltage:(Reversal protection)
To meet RTCA DO-160D
Input Current:1.0 A nominal (1.2 A initial surge) or 0.3 A max at 115 VAC
Max Flow:1USFPM (3.8 LPM)
Weight: 6.2 lbs (2.8 Kg)
Dimensions:11.6 high x 6.3 wide x 4.0 deep (267 x 159 x 102 mm)

The NPS-A4 system uses a powerful microprocessor to analyze the monitoring system and provide instant feedback to users concerning the functionality of the unit.

View the NPS-A4 Unit Contact us directly to learn more.