Zooz makes reliable Z-Wave gear for smart homes that need to work. The ZAC36 Titan Water Valve Actuator is their most serious product, built for one critical job: automatically shutting off your main water line to prevent catastrophic flooding. It’s a physical insurance policy.

This actuator clamps onto a standard 0.5″ to 1.25″ ball valve. When paired with a compatible Z-Wave hub and a water leak sensor, it can close that valve in seconds if a leak is detected. The 700 Series Z-Wave chip offers extended range for installations where your hub is far from your main water line. The stainless steel housing and titanium components feel industrial, built to handle a basement’s environment for years.

Installation demands precision. You must have a full 3 inches of clearance from the valve center on all sides and at least 1.25 inches between the valve handle and pipe. If your plumbing is tucked tightly against a wall, this unit likely won’t fit. Get your tape measure out first. For those with the space, it’s a definitive solution for peace of mind.