Review on 🚰 2 Pack Brass Backflow Preventer Vacuum Breaker Hose Bibb Connector with 3/4" Inch GHT for Litorange by Jelani Weaver

Works well and looks good. It spits out some water when the sprinkler valve closes, but I think that means it's working properly. Didn't hear the noise that others complained about. Note that this restricts the water flow somewhat. My sprinkler valve measures gallons per minute and after installation it reads almost 1 gallon per minute down. It's probably not a big deal if you have good numbers to start with, but in my case I'm having trouble getting enough water into the system to start with. I don't know if this is normal or if other means of preventing backflow could be less restrictive. I gave one star in the review but not sure if I'm fair.