The 850 In-Line Double Check Assemblies are designed to effectively prevent the backflow of objectionable but non-toxic pollutants from entering the potable water supply. Key Features: Pollutant Prevention: Specifically prevents non-toxic pollutants from contaminating drinking water. Durable Construction: Made with a sturdy bronze body for enhanced durability. Connection Type: Equipped with threaded ball valve end connections for straightforward installation. Maximum Working Pressure: Rated for up to 175 PSI. Specifications: SKU: 15001130 Backflow Lead Free: Yes Backflow Prevention Type: Double Check Backflow Shape: Inline Manufacturer Part Number: T2613 Primary Material: Brass Primary Size: 1 inch Fitting Connection Type: Female Thread Primary Color: Bronze