Series 5000SS Reduced Pressure Detector Assembly Backflow Preventers are designed to prevent the reverse flow of fire protection system substances from being pumped or siphoned into the potable water supply. The 5000SS incorporates a meter to detect ground leaks and unauthorized illegal taps, greatly reducing annual water expenses. It consists of a stainless steel body, stainless steel internal parts, thermoplastic check valves and a bottom-mounted relief valve. Series 5000SS is half the weight of competitive designs, and its short lay length makes installation and maintenance simple and easy. It is ideal for installation on fire protection systems. Check with local water authorities for installation requirements. Maximum Working Pressure: 175psi (12.06 bar).