The Holman Dual Outlet Mechanical Tap Timer fits to a standard garden tap and times the water flow to any garden hose or watering system connected. This timer allows you to have two individually timed outlets, as well as having unattended watering for a time less than 2 hours. Simply connect your hose or poly-pipe irrigation system to the outlets. Great for larger gardens where more than one station exists. Both stations can be used at once and allocated their own run time.