The Waters 186009452 Acquity Premier Column BEH C18 is a high-quality chromatography column designed for use in various lab and research applications. With a 1.7um particle size and a 2.1 X 50mm dimensions, this column is ideal for separating and analyzing a wide range of analytes. The Waters brand is well-known for producing reliable and durable chromatography equipment, making this column a trusted choice for professionals in the healthcare, lab, and industrial sectors.