Makes 60 Washes. Easy-mix concentrate for 60 washes + Lavi dispenser. Natural, proven relief. Treats and helps prevent allergy symptoms and other sinus illnesses Lavi Nasal Spray was developed by a board-certified otolaryngologist and is recommended as part of a complete sinus health care regimen. Lavi s Complete Sinus Wash Kit includes a 12oz. supply of Lavi Sinus Wash Concentrate and Lavi s patented tip and dispenser for simple, effective sinus washing. Lavi Sinus Wash Concentrate offers a convenient, economical method for mixing Lavi Sainus Wash, a mildly hypertonic Dead Sea mineral.