Relief for severe sinus congestion: Flo CRS is designed to provide relief for individuals experiencing severe and prolonged sinus congestion, offering a solution for those with persistent nasal and sinus issues. Non-medicated and preservative-free: Similar to Flo Sinus Care, Flo CRS is a non-medicated and preservative-free isotonic irrigation solution, ensuring it is safe and gentle for regular use without the use of medications or preservatives. Xylitol formulation: Flo CRS contains a Xylitol formulation with a very low concentration of salts (sodium and potassium), offering an alternative for individuals sensitive to high salt concentrations. High volume irrigation: The solution is intended for high-volume nasal and sinus irrigation, providing thorough cleansing and relief for severe congestion. Recommended usage: For best results, it is recommended to use Flo CRS twice daily or as advised by a healthcare professional. Overall, the Flo CRS Refill Pack provides a gentle and effective solution for individuals experiencing severe and persistent sinus congestion, offering relief and comfort through regular nasal and sinus irrigation. With 50 sachets included in the pack, users have an adequate supply of irrigation solution for ongoing use as recommended by their healthcare professional.