The ReadiPrep™ PEG Virus Precipitation Kit provides a fast, efficient, and safe method for concentrating viral particles without the need for ultracentrifugation. Using a PEG-based precipitation approach, this kit can increase viral concentration by more than 100-fold from cell culture media or environmental samples, making it suitable for both small-scale preparations with low titers and large-scale virus production. The included optimized ReadiPrep™ Virus Resuspension Solution enhances viral recovery by 40 to 100%, depending on virus type and source. Designed for versatility, the kit is compatible with retroviruses, baculoviruses, lentiviruses, and phages. It uses only non-toxic reagents, allowing for safer handling and minimizing the risk of hazardous exposure. The concentrated virus is ready for use in downstream applications, including infection assays, viral nucleic acid extraction, and a range of virology research workflows.