This is a 5-year indefinite quantity contract for a specific fluid filter element, with an estimated annual quantity of 2,560 units. The Government intends to solicit only one or a limited number of sources, as the only currently approved suppliers are PTI Tech and Pall Aeropower; other contractors must submit a Source Approval Request. While not a request for competitive proposals, the Government will consider all proposals received within 45 days of the synopsis publication. The estimated solicitation issue date is April 22, 2026, which is when technical data will become available. The final award decision may be based on a combination of price, past performance, and other factors, and a reverse auction may be conducted.