Watts LF909 OSY ALERT 2 1 2 Part of the LF909 Large Series ground shipping Specifications Air Valve No Brand Specifications Air Valve No Brand Watts Buy American Act Compliant NO Case Material Steel Dial Size 2 1 2 IN EAN 098268589863 Entry Style Back Inlet Connection Size 1 2 IN Inlet Connection Type Male Threaded Lead Free YES Manual Shutoff No Maximum Operating Temperature Fahrenheit 320 Minimum Temperature Fahrenheit 60 Part Number 0121686 Pressure Scale 0 to 75 PSI Sensing Element Yes Sensing Fluid No Series LFDPTG 3 Stem Shaft Material Lead Free Brass Temperature Range 60 to 320 degrees F Thermostat Probe Length Does Not Apply To Product Thermowell No VR Retaining Valve No Specification Sheet LFDPTG 3 This lead free cover repair kit provides all the parts necessary to replace the cover of the 3 4 inch applicable double check valve assembly The LF909 Backflow preventer features an exclusive air in water out principle relief valve for increased protection during backflow emergencies multi channel alerts