The Department of Health and Human Services, specifically the National Institutes of Health (NIH), intends to award a fixed-price sole source purchase order to Advanced Instruments, LLC for the procurement of an Osmo Pro Max automated osmometer and associated services. This acquisition is essential for the Department of Laboratory Medicine, which requires the osmometer for conducting osmolality testing on various body fluids, a critical diagnostic tool for evaluating patients' water balance and monitoring treatment efficacy. The procurement process is being conducted under FAR Part 13, allowing for a sole source acquisition due to the specific compatibility and quality assurance requirements already established with Advanced Instruments. Interested parties capable of providing similar products may submit a capability statement by April 24, 2025, to Emeka Onyejekwe at emeka.onyejekwe@nih.gov.