The Department of the Interior, specifically the U.S. Geological Survey (USGS), is seeking qualified businesses to provide replacement parts for three Amiad AMF-93K water filter systems. The procurement focuses on specific components such as O-rings, piston housing assemblies, piston assemblies, gaskets, and tail assemblies, which must be manufacturer equivalent and approved for use in these filters. These replacement parts are critical for maintaining the functionality of the water purification systems used at the USGS Western Fisheries Research Center in Seattle, WA. Interested vendors must submit a product data sheet detailing their capabilities via email to Yangzhi Deng at yangzhideng@usgs.gov by January 12, 2026, at 12:00 PM PST, as this is a sources sought announcement and not a request for proposals.