General description The 905-051 765 Check Valve Assembly Repair Kit is designed for 1/2 inch and 3/4 inch Model Pressure Vacuum Breakers. This kit is compatible with models 765, 905051, 765CBV, and 765DBV, ensuring a perfect fit for your backflow prevention needs. Technical specifications Maximum working pressure: 150 psi Material: High-quality brass and premium plastic Color: Photo Color Measurement allowed error: +/- 1-3 cm Installation No special tools required for installation Steps: Close the valve, open the test valve to release residual pressure, replace the defective valve, clean and grease components, then turn on the outlet valve to complete the repair Usage This check valve assembly is designed for easy installation and removal, providing strong and long-lasting performance due to its precise CNC manufacturing process and durable materials. Other information Package Contents: 1 x Holder, 1 x Screw, 1 x Disc Note: Light reflection and different displays may cause the color