The Zurn 3.5 GPF Flush Valve Repair Kit with AquaFlush Dual Seal Diaphragm in GO BLUE is a reliable and efficient solution for repairing flush valves in bathrooms. This rebuild kit is specifically designed for Zurn products, ensuring compatibility and easy installation. The dual seal diaphragm provides a secure seal for a leak-proof performance, while the blue color adds a pop of color to your bathroom decor. With free express shipping in the United States, this kit is a convenient and practical choice for maintaining your toilet's flush valve.