Watts LF25AUB DU QC Z3 3 4 Part of the LF25AUB Z3 Series ZA100F 6NH This 1 2 inch lead free This 1 2 inch lead free anti siphon vacuum breaker backflow preventer for hot or cold water prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage Sensing Passage O ring Kit Type First Check Kit Lead Free YES Product Group BACKFLOW KITS UPC 098268651331 double union quick connect inlet and outlet 2 Body Material Lead Free Copper Silicon Alloy Brand Watts Corrosion Resistant Coating No Disc Material EPDM EAN 098268860023 Gauge Option No Gauge High Pressure Reduced Pressure Range Does Not Apply To Product High Pressure Reduced Pressure Setting Does Not Apply To Product Inlet Connection Size 3 4 IN Inlet Connection Type Union Quick Connect Inlet Thread Type Does Not Apply To Product Lead Free YES Maximum Operating Temperature Fahrenheit 180 Maximum Working Pressure BAR 20