Watts G4000 FDA Part of the G4000 FDA Series Window Well Extension This total rubber parts kit This total rubber parts kit is used for replacing or repairing the relief valve assembly on a 2 1 2 and 3 inch lead free reduced pressure zone assembly series 909 used to prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure Specifications Brand Watts Diameter 24 IN Inlet Connection Size 1 1 2 IN Inlet Connection Size Metric 40 MM Inlet Connection Type Male Threaded Lead Free YES Maximum Operating Temperature Fahrenheit 240 Maximum Working Pressure PSI 150 Mount Type Free Standing Tank Acceptance 53 Gallons Specification Sheet DETA industrial Since it is FDA approved it is ideal for potable water and food contact applications