1″ Apollo PVB-4A/4ALF Float & Bonnet Repair Kit

Keep your backflow prevention system operating efficiently with this 1-inch float and bonnet repair kit, designed specifically for Apollo PVB-4A and PVB-4ALF models. This complete top-half replacement eliminates leaks and restores proper water flow, ensuring compliance with backflow prevention standards. The kit includes all essential components—float assembly, bonnet assembly, O-ring, float cage, and cap—so you don’t need to source individual parts.

Engineered for durability, this repair kit features a built-in freeze relief valve that has undergone rigorous testing, including over 1,000 simulated freeze-thaw cycles, guaranteeing reliable performance even in extreme winter conditions. Whether you're addressing leaks or maintaining system integrity, this direct replacement for part numbers 4A-005-07/4A00507 delivers a hassle-free solution. Not compatible with 1/2″, 3/4″, or 1-1/4″ devices.