1" valve port Float and Bonnet Complete Repair Kit for 4A Series Devices,4A-005-07,4A00507 Complete Top Half Repair Kit,Compatible with Apollo backflow preventer(Not for 1/2" 3/4" 1-1/4" valve port)
✅【 Easy to Install】The installation of the kit was simple and easy. I took off the canopy cap by unscrewing its two screws, unscrewed the bonnet assembly from the valve body, removed the O ring on the top of the valve body, pulled out the float valve (red and white thing), and removed the basket below the float. I replaced kit parts in the same order (basket, float valve, top assembly, and O ring after lubricating it with the silicone in the kit, and canopy cover.