Found coupon code that EcoNet Controls just made (apparently in celebration of their newest version of the EBV105-UMK.)
You don’t have to do any extra plumbing to install. It attaches to various sized valves and waits for the command from your hub. These can even be paired with a z-wave water sensor to shut off the line the minute water is detected. I have one on my hot water tank so that if it ever goes, it’ll kill the water supply line. I’ve thought about getting another one and installing it on the line that supplies the outside spigot (creating a cheap SmartThings sprinkler system).
Here’s the link: http://www.econetcontrols.com/
Here’s the code: ebv15off (they said it is good until 6/12/16)