1/2" Union FNPT Dual Check Backflow Preventer Valve w/ Atmospheric Vent
Mfr Part#: 12-760
Zurn 12-760 Wilkins Dual Check Valve is used to protect boiler fill water lines by preventing the reverse flow of polluted water into the potable supply lines.
Installation: Can be installed in a horizontal or vertical position downstream of shut-off valve and in available location for supporting servicing. Not pipe the vent port directly into drainage ditch, sewer or pump.