Contains: * 1-MaverickTM12-outlet drip head with 2 GPH per zone * 1-filter * 8-caps to close any unused zones * 12-bug plugs * 12-tubing holder stakes * 12-converter barbs.If you have an area where you are currently using conventional sprinklers, or are installing a new sprinkler system, take a look at the areas to be watered. While large areas such as lawns are best watered by sprinklers, other areas such as shrubs, trees and planters could be better watered by drip irrigation.Converts Existing sprinkler head to a 12 zone drip system.The Maverick 12-zone drip head is designed to adapt to any 1/2" riser above or below ground. It may be incorporated into a new system, or used to convert an existing sprinkler to a 12-zone drip system without disturbing the flow of the other sprinklers on the line. The Maverick uses our extremely accurate pressure compensating nozzles ensuring equal flow over a wide pressure range, and is designed to operate for the same duration as the rest of your sprinkler system.