Plumbing codes mandate that potable water supplies be protected against backflow at all cross-connections. We offer the largest selection of backflow prevention solutions for any application.

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This vacuum breaker integrates with KOHLER handshower components to prevent back flow of polluted water if the water pressure drops. The unit features solid-brass construction and a resilient finish for …

Shop Backflow Preventers at Ferguson. Find expert-curated Backflow Preventers products from the #1 US plumbing supplier and top distributor of HVAC, waterworks, and MRO products.

Backflow preventers ensure fluids move in one direction and stop contaminants from entering the system due to back-siphonage or -pressure.

Watts number 909QT 4" flanged reduced pressure backflow preventer with a double check valve assembly for non-health, low hazard cross-connections, and continuous pressure applications.

Ideal for protection at health hazard cross-connections or for containment at the service line entrance. Its compact modular design facilitates maintenance and assembly access. Check with local water …

BBFP Dual Check Valves with Intermediate Atmospheric Vent prevent the reverse flow of hot or cold polluted water from entering into the potable water supply. It consists of a brass body with stainless …

This 3/4 in. double check valve backflow preventer assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or …

The assembly uses NRS shutoffs. This backflow assembly also includes a backflow flood sensor alert that monitors the condition of your backflow assembly 24/7 and alerts you in the event of RPZ …