950XL2 Backflow Preventer

A backflow or "pressure vacuum breaker assembly" is a device that allows water to go through it in one direction, but prevents it from going backwards in the opposite direction. Most PVB's are used to keep unsafe water from reversing flow and entering the clean water supply.

***You should have a backflow preventer on your irrigation system if your water comes from a “potable” (drinkable) source***