The 760 Dual Check Valve Backflow Preventer with Intermediate Atmospheric Vent provides low health hazard protection from backflow in both residential and commercial applications, primarily from a residential boiler or small commercial boiler. Features of this continuous pressure type backflow preventer include a threaded atmospheric vent drain for safe drainage, and a corrosion-resistant, high-quality brass body construction with an integral stainless steel strainer screen to prevent buildup of unwanted debris. Union connections are included on both ends, and are available in either FNPT or copper connections.