WaterBlock Excess Flow Shutoff Valve

The WaterBlock Excess Flow Shutoff Valve is a smart point-of-use solution designed to prevent water damage from malfunctioning appliances. Whether it’s a runaway dishwasher, a leaking refrigerator ice maker, or a broken washing machine hose, this valve automatically shuts off water flow when usage exceeds your preset limit—protecting your home from costly floods and water damage.

Easy to install and use, the WaterBlock features a simple reset mechanism (requires turning off the main water supply and relieving pressure) and comes with ½" NPT adapters for quick setup. While it includes standard garden hose connectors, additional adapters may be needed depending on your specific plumbing configuration. Ideal for toilets, sinks, bidets, and appliances like washing machines, ice makers, and dishwashers, this valve provides peace of mind by acting as a fail-safe against unexpected water overflows.