RYOBI Misting Kits and Accessories are the easiest and most efficient way to provide the cool, comfortable surroundings you want. The RYOBI 5-Pack of 4 in. Flexible Nozzle Extensions can be used in place of an existing misting nozzles so that that you can direct the direction of the cooling mist anywhere you want. The flexible extension nozzles are specially designed to fit into any 10/24 threaded misting nozzle opening and can be used the Ryobi 1/4 in. or 3/8 in. misting systems.These extensions only uses 1/2 GPH per nozzle. This item along with all other Ryobi Misting Kits and Accessories is designed for outdoor use with cold water only.