The best-selling Orbit One Outlet Single-Dial Hose Faucet Timer allows complete timer control functionality. The oversized dial cycles easily from set clock, set watering time, how often, how long, then run program. Scheduling flexibility is an important feature of this timer, as you can set your watering cycle intervals for anytime from once every six hours to once every seven days. A rain delay is built into the run program function, helping to conserve water at every opportunity. A "manual" button allows for program interruption at any time. The durable, heavy-duty brass swivel will connect with most standard hose faucets. The timer is for outdoor use with cold water only, and has a maximum operating pressure of 100 PSI. Using this timer also saves water in drought conditions.