Aqualine Brass 3/4" Hose End Vacuum Breaker
This Hose End Vacuum Breaker, often called a backflow preventer, is recommended on any irrigation connection with a shared water source to prevent the risk of contaminants entering back into your water source. This item has standard 3/4" garden hose threads on inlet and outlet. Durable brass construction with rubber seal and stainless steel spring for long life. Not rated for constant pressure so must be placed after any valves or timers.
*Please note: Brass contains trace amounts of lead, so please consider your planned use before purchase.