Febco 3 4" Pressure Vacuum Breaker 3 4” 765 QT FZ PVB 3 4 IN Bronze Pressure Vacuum Breaker Backflo P 154D16 LF Replacement stem is 17 7 8 in Replacement stem is 17 7 8 in 1 1 4" Knockout Dimensions Left (2) 1 2" 3 4" Knockout Dimensions Right (1) 1 3 4" x 2 3 4" Mechanisms Load Center with Compartment for Optional Wiring Devices Operating Temperature Max (°C) 54 Operating Temperature Max (°F) 130 Operating Temperature Min (°C) 40 Operating Temperature Min (°F) 40 Product Depth (in) 4 Internal parts serviceable in line from top of unit 00 Maximum Working Pressure PSI 150 Meter Type No Meter Minimum Temperature Celsius 0