This is a non-competitive, brand-name solicitation for two CD Leycom INCA Pressure-Volume Loop Systems, including accessories, catheters, and training, for the NIH’s National Heart, Lung, and Blood Institute. The systems are required to support clinical studies under an Investigational Device Exemption, and CD Leycom is the sole manufacturer of such a system approved for human clinical use. The contract will be a firm-fixed-price purchase order, not expected to exceed the simplified acquisition threshold. The place of performance is not specified, and no budget amount is provided. The associated NAICS code is 334516, and the requirement is not set aside for small business.