Product Features:Cartridge part - actuator assemblyEngineered and of Fully covered under Chicago Faucets 5-year cartridge warrantyConstructed from ECAST brass alloyComplete with index buttonDiameter: 1-1/8 Overall Height: 3-3/4 Technologies and Benefits:ECAST Construction: With the threat of lead pollution in the public’s supply of drinking water Chicago Faucets was one of the industry’s first to take the lead in finding a solution. These faucets are made of the same durable high quality materials and fittings as always however they are manufactured with .25% or less total lead content by weighted average. This means their faucets not only meet the strict guidelines first introduced by states like and Virginia but it surpasses those standards coming as close to truly lead-free as possible.