Febco LFFRK 860 80V VT 2 1 2 10 RV Part of the RK LF860 LF866 LF880V LF886V Series Window Well Cover This 1 inch lead free This 1 inch lead free reduced pressure zone backflow preventer assembly with its exclusive design incorporating the patented air in and water out principle for protection during an emergency condition prevents the flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements UPC 098268614701 This relief valve module kit is used to repair the internal relief valve module of a 2 1 2 to 10 inch reduced pressure zone assembly LF886V Compatible Size Used On 2 1 2 IN to 10 IN Kit Type Relief Valve Internal Module Kit Lead Free YES Product Group KITS UPC 098268512861