NSF award 2603375 · Waterus LLC

SBIR Phase II: Continuous Salt-Free Softening via a Scalable Redox-Mediated Electrochemical System

Final report due

28 November 2028

in 772 days · The award ends on 31 July 2028.

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award ending 2028-07-31 · Research.gov
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Extension request16 Jun 2028in 607 days
award ending 2028-07-31 · Research.gov
PAPPG 24-1: “at least 45 days prior to the end date”
No-cost extension notice21 Jul 2028in 642 days
award ending 2028-07-31 · Research.gov
PAPPG 24-1: “at least ten calendar days prior to the end date”
Final report due28 Nov 2028in 772 days
award ending 2028-07-31 · Research.gov
PAPPG 24-1: “no later than 120-days following the end date of the award”
Project outcomes report due28 Nov 2028in 772 days
award ending 2028-07-31 · Research.gov
PAPPG 24-1: “no later than 120 days following the end date”
Award is closed out28 Nov 2028in 772 days
award ending 2028-07-31 · Research.gov
PAPPG 24-1: “financially closed out 120 days after their expiration date”

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NSF lists this award's end date as 31 July 2028.
NSF rules say the final report is due no later than 120 days after that.
So the final report is due by 28 November 2028.

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Award card

Award number: 2603375
Period of support: 1 Aug 2026 – 31 Jul 2028
Amount: $1,234,063
Awardee: Waterus LLC, Irmo, SC
Program: SBIR Phase II
Directorate: TIP

Abstract

The broader/ commercial impact of this Small Business Innovation Research (SBIR) Phase II is the advancement a new salt-free softening system that cleans without using harsh chemical additives. The system uses very little electricity and requires almost no maintenance, making it a convenient and affordable choice for homeowners. This project investigates a novel electrochemical approach to softening, replacing…

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