Great Compatibility- The 630-7500 Wall Hydrant Vacuum Breaker Repair Kit fits for Mansfield style 400 or 500 series anti-siphon wall hydrant & for Prier original 400 series & diamond series anti-siphon wall hydrants. Also fits for NIBCO 90 anti-siphon valves Leakage Prevention- The kit creates a watertight seal, helping prevent leakage in wall hydrant, fixing faulty or worn-out components. Ensure the hydrant operates efficiently and effectively Good Material- Made of heavy duty ABS plastic and premium aluminum, ensuring stability & durability. Keep hydrant in proper functioning and preventing leaks Easy Installation- Screw out old part, drop the new one into hydrant; then screw it back in. Really almost just pop and push. Finished within minutes Satisfaction Provision- If you encounter any quality problems during the purchase process, we will provide you with after-sales service in time to solve problems for you and protect your rights and interests The 630-7500 Wall Hydrant Vacuum Breaker Repair Kit fits for Mansfield style 400 or 500 series anti-siphon wall hydrant & for Prier original 400 series & diamond series anti-siphon wall hydrants. Also fits for NIBCO 90 anti-siphon valves