Heavy Duty Brass Backflow Preventer Half Inch Dual Check Valve With Intermediate Atmospheric Vent For Vertical Or Horizontal Install, Female Union Connections, Corrosion Resistant, Built To Last, Tough As Nails

High-quality brass half-inch dual check backflow preventer with vent for easy vertical or horizontal setups.
✔️ Brass body with stainless steel parts, corrosion-resistant up to 175 psi, handles 33°F to 210°F for reliable water systems.

This brass backflow preventer is a key device in plumbing that stops contaminated water from flowing back into clean supplies, commonly found in residential pipes, lab setups, and industrial tanks to protect against cross-contamination and meet safety standards.

✅ Corrosion-resistant brass construction lasts three times longer than standard valves, ideal for hot and cold water systems up to 175 psi.
✅ Universal 1/2-inch female threads fit U.S. piping easily, perfect for labs, sterilizers, and boiler lines to prevent pressure issues.
✅ Operates in extreme conditions from 33°F to 210°F with a fail-safe design, including clear inlet and vent labels for straightforward installs.
✅ Requires a drain above floor level for safety, ensuring no blockages in exhaust to avoid water damage or injury.

💡 How does a dual check backflow preventer enhance water system safety? This setup blocks reverse flow in plumbing to keep clean water safe from contaminants. - Prevents backflow in high-pressure environments like boilers and labs - Uses durable materials for long-term reliability against corrosion - Fits standard connections without extra mods for quick installs