Review on Febco 905 212 Breakers Backflow Preventers by Will Bremer

I noticed a leak in my PVB sprinkler after a recent freeze in Houston. I was about to buy a new PVB when I found this kit that replaces the part that broke during the freeze (it's actually designed to break so the rest of your system stays safe during the freeze). For half the price and a lot less work I was able to get my sprinkler system up and running as soon as Revane Prime could supply it. Installation is easy but I couldn't find any instructions in the kit so I had to turn to YouTube. It was actually more difficult to remove the defective parts than to install new ones. Considering the price, I don't understand why they can't include instructions.