The Atmospheric Vacuum Breaker is designed to prevent contaminants from entering the main water supply through sprinkler heads. It is not designed to be used as a mainline anti-siphon device.

• Prevents contaminants from entering the main water supply through sprinkler heads
• Not designed to be used as a mainline anti-siphon device
• Up to 150 psi
• Heavy-cast brass body
• For outdoor use with cold water only