Sole Source Letter_Aqua-Chem_07.29.26.pdf

This is an Original Equipment Manufacturer (OEM) Sole Source Certification letter dated July 29, 2026, issued by Aqua-Chem, Inc., a member of Nijhuis Saur Industries.

Aqua-Chem certifies itself as the sole OEM of freshwater distillation and reverse osmosis systems installed aboard numerous United States Coast Guard vessels. As the OEM, Aqua-Chem retains all proprietary engineering drawings, manufacturing specifications, software, technical documentation, service procedures, and product design information necessary to manufacture, repair, overhaul, upgrade, and support these systems. Aqua-Chem is the only authorized source for genuine OEM replacement parts and assemblies, factory engineering support and technical assistance, original design specifications and engineering documentation, factory-approved repairs and upgrades, software and HMI programming developed specifically for Aqua-Chem equipment, factory testing procedures and acceptance criteria, and OEM warranty support and engineering certification. The certification asserts that due to Aqua-Chem's proprietary engineering information and exclusive manufacturing rights, only Aqua-Chem can ensure that replacement components and repair services meet the original design, performance, and operational requirements of equipment installed aboard U.S. Coast Guard vessels. The letter is signed by Carl McMillan, Service Manager, and provides contact information for technical inquiries.