The Fill Valve 1.28gpf Maxwell SE HET GWS28175 from Gerber Plumbing Fixtures is engineered for high-efficiency toilets, providing optimal performance while conserving water. This fill valve is designed to refill the tank quickly and quietly, ensuring a smooth operation. It meets industry standards for efficiency and reliability, making it a perfect choice for eco-conscious consumers. The valve is compatible with various toilet models, ensuring easy installation and maintenance. With a flow rate of 1.28 gallons per flush, it helps reduce water usage without sacrificing performance.