SinuFlo Ready Rinse Premixed Solution is a natural, soothing saline nasal wash that can be used to relieve nasal congestion, postnasal drip, and sinus pressure. It is made with a premixed solution that is easy to use and does not require any measuring or preparation. SinuFlo Ready Rinse is also preservative-free and safe for most people to use, including pregnant women and children. Reusable squeeze bottle, using NeilMed® SINUS RINSE™ premixed refill packets.Soothing, no burning or stinging sensation.Single piece custom-designed cap fits any nasal opening. No push and pull cap components for easy cleaning