NIBCO® makes it easy to balance plumbing systems with our new lead-free and dezincification-resistant FLO-BOSS® manual balancing valves. Direct system readings are taken across the orifice, with no special calculators or meters required. The FLO-BOSS® 1810 Series fixed orifice manual balancing valves are complete with integral pressure temperature ports and memory stop. The FLO-BOSS 1810 Series provides 1440 deg of throttling adjustment, resulting in precise setting of system flow and is also capable of providing system isolation for maintenance with an integral memory stop feature, allowing the system to be returned to its retained settings once maintenance is completed. The FLO-BOSS lead-free manual balancing valves provide the ultimate solution for a wide range of application requirements to ensure a balanced plumbing system. NIBCO® FLO-BOSS® valves and components are backed by the NIBCO® 5 years 125% limited warranty.