Help protect and extend the life of your misting system in the offseason with the Ryobi 3-Pack of Brass Misting Nozzle Plugs. The RYOBI 3-Pack of Brass Misting Nozzle Plugs are designed to be used in place of your current misting nozzles. These plugs replace existing misting nozzles in the offseason when the system is not in use and the misting nozzles are being stored. These nozzle plugs prevent debris from clogging the system and reducing misting power. The RYOBI 3-Pack of Brass Nozzle Plugs are constructed of high-quality brass for longevity and durability. This item along with all other Ryobi Misting Kits and Accessories is designed for outdoor use with cold water only.