This is a solicitation for a firm-fixed-price, indefinite-delivery requirements contract to supply new approved oxygen regulators, anticipated to be awarded on a sole source basis to Av-DEC. The contract will include one base year and four one-year option periods, with a total duration not exceeding five years. No drawings, specifications, or schematics are available from the agency. All responsible sources may submit a quotation for consideration. The location for performance of services is not specified.