Zurn Wilkins 1-720A 1-Inch 720A Pressure Vacuum Breaker Assembly - Backflow Preventer for Irrigation Systems, Lawn Sprinklers & Water Supply Protection

Purchased this to replace my Toro Pressure Vacuum Breaker which lasted for > 10 years.This unit is made of solid brass, so of better quality and should be more durable and last for some length of time. It is also a preferred product used by some landscaping companies for code approval.Detailed Installation, Maintenance, Testing and Troubleshooting Instructions are provided.Installation was easy with some plumbing knowledge. If uncertain hire a professional.As shown in my pic, two PVC unions were added for future ease in maintenance activities.This was done to compensate for the unions which were inbuilt into the previous valve.Also if new install, give at least 1.5 times unit width all the way around to assist work effort.All in all, it is solid and has been working well thus far. Will monitor and update later.