The ELK-WSV2 electric water shutoff valve is designed for residential and light commercial use and can be used with virtually any automation or security controller. In less than 2 seconds this valve can shut off the main water supply to the building. The valve features a 1-in. full-bore stainless-steel ball valve with commercial-grade seats and seals. This valve does not restrict water flow and meets the NSF and NEMA approvals of state and municipal water authorities. When integrated with a smart system, such as the ELK M1 Gold, the water can be shut off due to leak detection, system arm state and schedule.