905-211 Bonnet & Poppet and 905-051 Check Valve Assembly Repair Kit Compatible with PVB Model 765CBV & 765DBV 1/2" - 3/4" Pressure Vacuum Breakers

Restore Your 765 Backflow Preventer to "Like-New" ConditionIs your Pressure Vacuum Breaker leaking, making noise, or failing to hold pressure? Designed specifically for 1/2-inch and 3/4-inch Model 765 series, this all-in-one solution contains both the internal check valve assembly and the top bonnet/poppet assembly, ensuring you have every component needed to perform a complete and professional-grade restoration.Why Choose Our Complete Repair Kit?A failing backflow preventer is a serious risk to your potable water supply. The two primary failure points are the check valve (which prevents backflow) and the bonnet poppet assembly (which seals the system). Our kit addresses both:Dual-Component Coverage: Includes the Check Valve Repair Kit (Holder, Spring, Retainer, Guide) and the Bonnet & Poppet Kit (Bonnet, Poppet, Stem, Spring, Rubber Disc, E-Ring, Washer, O-Ring, Bolts).Precision Engineering: We use advanced manufacturing processes to ensure every component meets or standard specifications for a perfect, leak-free fit.Superior Materials: Built to last with a mix of corrosion-resistant brass, high-strength ABS plastic, and heavy-duty steel. All materials are lead-free for safety and compliance.Simple Repair: Engineered for easy, tool-free installation. Compatibility & Replacements:This kit is custom-made for the Model 765 Pressure Vacuum Breaker in 1/2" and 3/4" sizes. It directly replaces the following part numbers:Check Valve Portion: 905-051, 905051, 300-096, 630-108;Bonnet Portion: 905-211, FRK 765-BP

• Perfect Fit: This repair kit is compatible with Model 765PVB 765CBV and 765DBV Pressure Vacuum Breakers. Fits for 1/2-inch and 3/4-inch models, replaces part numbers 905-211, FRK 765-BP 905-051, 905051, 300-096, and 630-108
• Complete Repair Kit: This kit includes Bonnet, Poppet, Stem, Spring, Rubber Disc, E-Ring, Washer, O-Ring and Bolts and Holder, Spring, Retainer, Guide
• High Quality and Durability: Components feature brackets and guides crafted from premium corrosion-resistant brass; Valve caps and cores are precision-engineered from high-strength ABS plastic; Valve stems and springs are constructed from heavy-duty steel and brass
• Superior Performance: The durable spring material withstands continuous pressures up to 150 PSI, eliminating noise and preventing leaks. This durable construction creates a strong, lasting seal that effectively prevents backflow, protecting your water supply from contamination by toxic or non-toxic liquids
• Easy Installation: All components can be assembled freely. To ensure a secure final installation, the engine cover features two precision grooves specifically designed for large wrenches. The procedure involves: closing the inlet valve, opening the test valve to release residual pressure, replacing the faulty component, and finally reopening the outlet valve