Save Water - Universal-Fit 2-Hour Sprinkler Timer - Battery-Free - Quick Connect Lower water bill and get greener lawn without installing underground sprinkler system Simple-to-operate timer attaches to spigot, faucet or hose - just turn dial to desired sprinkling time Set for 10 to 120 minutes - stops automatically; no batteries - powered by water pressure Constant-on setting so you don't have to disconnect from hose for other uses Includes quick-connect male plug, two rubber O-rings & screen; weatherproof ABS construction